minor

Fixes Kotlin/kotlinx.serialization#956

.idea/codeStyles/Project.xml

@@ -101,4 +101,4 @@
       <option name="ALIGN_MULTILINE_PARAMETERS_IN_CALLS" value="true" />
     </codeStyleSettings>
   </code_scheme>
-</component>
+</component>

.idea/dictionaries/svyatoslav_kuzmich.xml

@@ -0,0 +1,27 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="svyatoslav.kuzmich">
+    <words>
+      <w>anyfunc</w>
+      <w>copysign</w>
+      <w>eqref</w>
+      <w>exnref</w>
+      <w>externref</w>
+      <w>funcref</w>
+      <w>jetbrains</w>
+      <w>kotlinx</w>
+      <w>ktor</w>
+      <w>optref</w>
+      <w>popcnt</w>
+      <w>rotl</w>
+      <w>rotr</w>
+      <w>simd</w>
+      <w>sqrt</w>
+      <w>testsuite</w>
+      <w>uninstantiable</w>
+      <w>unlinkable</w>
+      <w>vtable</w>
+      <w>wabt</w>
+      <w>xopt</w>
+    </words>
+  </dictionary>
+</component>

.idea/inspectionProfiles/idea_default.xml

@@ -453,4 +453,4 @@
       <option name="ignoreNonEmtpyLoops" value="false" />
     </inspection_tool>
   </profile>
-</component>
+</component>

ReadMe.md

@@ -5,7 +5,10 @@
 
 # Kotlin Programming Language
 
-Welcome to [Kotlin](https://kotlinlang.org/)! Some handy links:
+Welcome to [Kotlin](https://kotlinlang.org/)!   
+It is an open-source, statically typed programming language supported and developed by [JetBrains](https://www.jetbrains.com/) and open-source contributors.
+
+Some handy links:
 
  * [Kotlin Site](https://kotlinlang.org/)
  * [Getting Started Guide](https://kotlinlang.org/docs/tutorials/getting-started.html)

benchmarks/build.gradle.kts

@@ -40,9 +40,7 @@ dependencies {
     compile(project(":compiler:cli"))
     compile(intellijCoreDep()) { includeJars("intellij-core") }
     compile(jpsStandalone()) { includeJars("jps-model") }
-    Platform[192].orHigher {
-        compile(intellijPluginDep("java"))
-    }
+    compile(intellijPluginDep("java"))
     compile(intellijDep()) { includeIntellijCoreJarDependencies(project) }
     compile("org.jetbrains.kotlinx:kotlinx.benchmark.runtime-jvm:$benchmarks_version")
 }

build-common/src/org/jetbrains/kotlin/build/ExecutionStrategy.kt

@@ -3,9 +3,10 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.findUsages
+package org.jetbrains.kotlin.build
 
-import com.intellij.util.Processor
+import java.io.Serializable
 
-// FIX ME WHEN BUNCH 193 REMOVED
-typealias ProcessorInCompat<T> = Processor<T>
+enum class ExecutionStrategy : Serializable {
+    DAEMON, IN_PROCESS, OUT_OF_PROCESS
+}

build-common/src/org/jetbrains/kotlin/build/report/BuildReporter.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report
+
+import org.jetbrains.kotlin.build.report.metrics.BuildMetricsReporter
+import org.jetbrains.kotlin.build.report.metrics.RemoteBuildMetricsReporter
+
+open class BuildReporter(
+    protected open val icReporter: ICReporter,
+    protected open val buildMetricsReporter: BuildMetricsReporter
+) : ICReporter by icReporter, BuildMetricsReporter by buildMetricsReporter
+
+class RemoteBuildReporter(
+    override val icReporter: RemoteICReporter,
+    override val buildMetricsReporter: RemoteBuildMetricsReporter
+) : BuildReporter(icReporter, buildMetricsReporter), RemoteReporter {
+    override fun flush() {
+        icReporter.flush()
+        buildMetricsReporter.flush()
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/ICReporter.kt

@@ -3,7 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.incremental
+package org.jetbrains.kotlin.build.report
 
 import org.jetbrains.kotlin.cli.common.ExitCode
 import java.io.File
@@ -17,3 +17,5 @@ interface ICReporter {
     fun reportMarkDirtyMember(affectedFiles: Iterable<File>, scope: String, name: String)
     fun reportMarkDirty(affectedFiles: Iterable<File>, reason: String)
 }
+
+

build-common/src/org/jetbrains/kotlin/build/report/ICReporterBase.kt

@@ -1,9 +1,9 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.incremental
+package org.jetbrains.kotlin.build.report
 
 import java.io.File
 

build-common/src/org/jetbrains/kotlin/build/report/RemoteICReporter.kt

@@ -3,9 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.idea.projectView
+package org.jetbrains.kotlin.build.report
 
-import com.intellij.ide.util.treeView.AbstractTreeNode
-
-// FIX ME WHEN BUNCH 193 REMOVED
-typealias AbstractTreeNodeAny = AbstractTreeNode<Any>
+interface RemoteICReporter : ICReporter,
+    RemoteReporter

build-common/src/org/jetbrains/kotlin/build/report/RemoteReporter.kt

@@ -3,11 +3,9 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.idea
+package org.jetbrains.kotlin.build.report
 
-import com.intellij.openapi.project.Project
+interface RemoteReporter {
+    fun flush()
+}
 
-// FIX ME WHEN BUNCH 193 REMOVED
-fun runActivity(project: Project) {
-    // nothing for 193
-}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildAttribute.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+import java.io.Serializable
+
+enum class BuildAttributeKind : Serializable {
+    REBUILD_REASON;
+
+    companion object {
+        const val serialVersionUID = 0L
+    }
+}
+
+enum class BuildAttribute(val kind: BuildAttributeKind) : Serializable {
+    NO_BUILD_HISTORY(BuildAttributeKind.REBUILD_REASON),
+    CACHE_CORRUPTION(BuildAttributeKind.REBUILD_REASON),
+    UNKNOWN_CHANGES_IN_GRADLE_INPUTS(BuildAttributeKind.REBUILD_REASON),
+    JAVA_CHANGE_UNTRACKED_FILE_IS_REMOVED(BuildAttributeKind.REBUILD_REASON),
+    JAVA_CHANGE_UNEXPECTED_PSI(BuildAttributeKind.REBUILD_REASON),
+    JAVA_CHANGE_UNKNOWN_QUALIFIER(BuildAttributeKind.REBUILD_REASON),
+    DEP_CHANGE_REMOVED_ENTRY(BuildAttributeKind.REBUILD_REASON),
+    DEP_CHANGE_HISTORY_IS_NOT_FOUND(BuildAttributeKind.REBUILD_REASON),
+    DEP_CHANGE_HISTORY_CANNOT_BE_READ(BuildAttributeKind.REBUILD_REASON),
+    DEP_CHANGE_HISTORY_NO_KNOWN_BUILDS(BuildAttributeKind.REBUILD_REASON),
+    DEP_CHANGE_NON_INCREMENTAL_BUILD_IN_DEP(BuildAttributeKind.REBUILD_REASON),
+    IN_PROCESS_EXECUTION(BuildAttributeKind.REBUILD_REASON),
+    OUT_OF_PROCESS_EXECUTION(BuildAttributeKind.REBUILD_REASON),
+    IC_IS_NOT_ENABLED(BuildAttributeKind.REBUILD_REASON);
+
+    companion object {
+        const val serialVersionUID = 0L
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildAttributes.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+import java.io.Serializable
+import java.util.*
+
+class BuildAttributes : Serializable {
+    private val myAttributes =
+        EnumMap<BuildAttribute, Int>(
+            BuildAttribute::class.java
+        )
+
+    fun add(attr: BuildAttribute, count: Int = 1) {
+        myAttributes[attr] = myAttributes.getOrDefault(attr, 0) + count
+    }
+
+    fun addAll(other: BuildAttributes) {
+        other.myAttributes.forEach { (attr, n) -> add(attr, n) }
+    }
+
+    fun asMap(): Map<BuildAttribute, Int> = myAttributes
+
+    companion object {
+        const val serialVersionUID = 0L
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildMetrics.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+import java.io.Serializable
+
+data class BuildMetrics(
+    val buildTimes: BuildTimes = BuildTimes(),
+    val buildAttributes: BuildAttributes = BuildAttributes()
+) : Serializable {
+    fun addAll(other: BuildMetrics) {
+        buildTimes.addAll(other.buildTimes)
+        buildAttributes.addAll(other.buildAttributes)
+    }
+
+    companion object {
+        const val serialVersionUID = 0L
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildMetricsReporter.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+interface BuildMetricsReporter {
+    fun startMeasure(metric: BuildTime, startNs: Long)
+    fun endMeasure(metric: BuildTime, endNs: Long)
+
+    fun addAttribute(attribute: BuildAttribute)
+
+    fun getMetrics(): BuildMetrics
+    fun addMetrics(metrics: BuildMetrics?)
+}
+
+inline fun <T> BuildMetricsReporter.measure(metric: BuildTime, fn: () -> T): T {
+    val start = System.nanoTime()
+    startMeasure(metric, start)
+
+    try {
+        return fn()
+    } finally {
+        val end = System.nanoTime()
+        endMeasure(metric, end)
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildMetricsReporterImpl.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+import java.util.*
+
+class BuildMetricsReporterImpl : BuildMetricsReporter {
+    private val myBuildTimeStartNs: EnumMap<BuildTime, Long> =
+        EnumMap(
+            BuildTime::class.java
+        )
+    private val myBuildTimes = BuildTimes()
+    private val myBuildAttributes = BuildAttributes()
+
+    override fun startMeasure(metric: BuildTime, startNs: Long) {
+        if (metric in myBuildTimeStartNs) {
+            error("$metric was restarted before it finished")
+        }
+        myBuildTimeStartNs[metric] = startNs
+    }
+
+    override fun endMeasure(metric: BuildTime, endNs: Long) {
+        val startNs = myBuildTimeStartNs.remove(metric) ?: error("$metric finished before it started")
+        val durationNs = endNs - startNs
+        myBuildTimes.add(metric, durationNs)
+    }
+
+    override fun addAttribute(attribute: BuildAttribute) {
+        myBuildAttributes.add(attribute)
+    }
+
+    override fun getMetrics(): BuildMetrics =
+        BuildMetrics(
+            buildTimes = myBuildTimes,
+            buildAttributes = myBuildAttributes
+        )
+
+    override fun addMetrics(metrics: BuildMetrics?) {
+        if (metrics == null) return
+
+        myBuildAttributes.addAll(metrics.buildAttributes)
+        myBuildTimes.addAll(metrics.buildTimes)
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildTime.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+import java.io.Serializable
+
+@Suppress("Reformat")
+enum class BuildTime(val parent: BuildTime? = null) : Serializable {
+    GRADLE_TASK,
+        CLEAR_OUTPUT(GRADLE_TASK),
+        BACKUP_OUTPUT(GRADLE_TASK),
+        RESTORE_OUTPUT_FROM_BACKUP(GRADLE_TASK),
+        CONNECT_TO_DAEMON(GRADLE_TASK),
+        CLEAR_JAR_CACHE(GRADLE_TASK),
+        RUN_COMPILER(GRADLE_TASK),
+            NON_INCREMENTAL_COMPILATION_IN_PROCESS(RUN_COMPILER),
+            NON_INCREMENTAL_COMPILATION_OUT_OF_PROCESS(RUN_COMPILER),
+            NON_INCREMENTAL_COMPILATION_DAEMON(RUN_COMPILER),
+            INCREMENTAL_COMPILATION(RUN_COMPILER),
+                IC_CALCULATE_INITIAL_DIRTY_SET(INCREMENTAL_COMPILATION),
+                    IC_ANALYZE_CHANGES_IN_DEPENDENCIES(IC_CALCULATE_INITIAL_DIRTY_SET),
+                        IC_FIND_HISTORY_FILES(IC_ANALYZE_CHANGES_IN_DEPENDENCIES),
+                        IC_ANALYZE_HISTORY_FILES(IC_ANALYZE_CHANGES_IN_DEPENDENCIES),
+                    IC_ANALYZE_CHANGES_IN_JAVA_SOURCES(IC_CALCULATE_INITIAL_DIRTY_SET),
+                    IC_ANALYZE_CHANGES_IN_ANDROID_LAYOUTS(IC_CALCULATE_INITIAL_DIRTY_SET),
+                    IC_DETECT_REMOVED_CLASSES(IC_CALCULATE_INITIAL_DIRTY_SET),
+                CLEAR_OUTPUT_ON_REBUILD(INCREMENTAL_COMPILATION),
+                IC_UPDATE_CACHES(INCREMENTAL_COMPILATION),
+                INCREMENTAL_ITERATION(INCREMENTAL_COMPILATION),
+                NON_INCREMENTAL_ITERATION(INCREMENTAL_COMPILATION),
+                IC_WRITE_HISTORY_FILE(INCREMENTAL_COMPILATION);
+
+    companion object {
+        const val serialVersionUID = 0L
+
+        val children by lazy {
+            values().filter { it.parent != null }.groupBy { it.parent }
+        }
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/BuildTimes.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+import java.io.Serializable
+import java.util.*
+
+class BuildTimes : Serializable {
+    private val myBuildTimes = EnumMap<BuildTime, Long>(BuildTime::class.java)
+
+    fun addAll(other: BuildTimes) {
+        for ((bt, timeNs) in other.myBuildTimes) {
+            add(bt, timeNs)
+        }
+    }
+
+    fun add(buildTime: BuildTime, timeNs: Long) {
+        myBuildTimes[buildTime] = myBuildTimes.getOrDefault(buildTime, 0) + timeNs
+    }
+
+    fun asMap(): Map<BuildTime, Long> = myBuildTimes
+
+    companion object {
+        const val serialVersionUID = 0L
+    }
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/DoNothingBuildMetricsReporter.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.build.report.metrics
+
+object DoNothingBuildMetricsReporter : BuildMetricsReporter {
+    override fun startMeasure(metric: BuildTime, startNs: Long) {
+    }
+
+    override fun endMeasure(metric: BuildTime, endNs: Long) {
+    }
+
+    override fun addAttribute(attribute: BuildAttribute) {
+    }
+
+    override fun getMetrics(): BuildMetrics =
+        BuildMetrics(
+            BuildTimes(),
+            BuildAttributes()
+        )
+
+    override fun addMetrics(metrics: BuildMetrics?) {}
+}

build-common/src/org/jetbrains/kotlin/build/report/metrics/RemoteBuildMetricsReporter.kt

@@ -3,9 +3,9 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.idea.projectView
+package org.jetbrains.kotlin.build.report.metrics
 
-import com.intellij.ide.util.treeView.AbstractTreeNode
+import org.jetbrains.kotlin.build.report.RemoteReporter
 
-// FIX ME WHEN BUNCH 193 REMOVED
-typealias AbstractTreeNodeAny = AbstractTreeNode<*>
+interface RemoteBuildMetricsReporter : BuildMetricsReporter,
+    RemoteReporter

build-common/src/org/jetbrains/kotlin/incremental/buildUtil.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.build.GeneratedFile
 import org.jetbrains.kotlin.build.GeneratedJvmClass
 import org.jetbrains.kotlin.build.JvmSourceRoot
 import org.jetbrains.kotlin.build.isModuleMappingFile
+import org.jetbrains.kotlin.build.report.ICReporter
 import org.jetbrains.kotlin.config.Services
 import org.jetbrains.kotlin.incremental.components.LookupTracker
 import org.jetbrains.kotlin.load.kotlin.incremental.components.IncrementalCache
@@ -31,6 +32,7 @@ import org.jetbrains.kotlin.progress.CompilationCanceledStatus
 import org.jetbrains.kotlin.resolve.sam.SAM_LOOKUP_NAME
 import org.jetbrains.kotlin.utils.addToStdlib.flattenTo
 import java.io.File
+import java.nio.file.Files
 import java.util.*
 import kotlin.collections.HashSet
 import kotlin.collections.LinkedHashSet
@@ -66,7 +68,7 @@ fun makeModuleFile(
         friendDirs
     )
 
-    val scriptFile = File.createTempFile("kjps", sanitizeJavaIdentifier(name) + ".script.xml")
+    val scriptFile = Files.createTempFile("kjps", sanitizeJavaIdentifier(name) + ".script.xml").toFile()
     scriptFile.writeText(builder.asText().toString())
     return scriptFile
 }

build-common/src/org/jetbrains/kotlin/incremental/storage/NonCachingLazyStorage.kt.193

@@ -1,106 +0,0 @@
-/*
- * Copyright 2010-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.incremental.storage
-
-import com.intellij.util.io.DataExternalizer
-import com.intellij.util.io.KeyDescriptor
-import com.intellij.util.io.JpsPersistentHashMap
-import java.io.File
-
-
-class NonCachingLazyStorage<K, V>(
-    private val storageFile: File,
-    private val keyDescriptor: KeyDescriptor<K>,
-    private val valueExternalizer: DataExternalizer<V>
-) : LazyStorage<K, V> {
-    @Volatile
-    private var storage: JpsPersistentHashMap<K, V>? = null
-
-    @Synchronized
-    private fun getStorageIfExists(): JpsPersistentHashMap<K, V>? {
-        if (storage != null) return storage
-
-        if (storageFile.exists()) {
-            storage = createMap()
-            return storage
-        }
-
-        return null
-    }
-
-    @Synchronized
-    private fun getStorageOrCreateNew(): JpsPersistentHashMap<K, V> {
-        if (storage == null) {
-            storage = createMap()
-        }
-
-        return storage!!
-    }
-
-    override val keys: Collection<K>
-        get() = getStorageIfExists()?.allKeysWithExistingMapping ?: listOf()
-
-    override operator fun contains(key: K): Boolean =
-        getStorageIfExists()?.containsMapping(key) ?: false
-
-    override operator fun get(key: K): V? =
-        getStorageIfExists()?.get(key)
-
-    override operator fun set(key: K, value: V) {
-        getStorageOrCreateNew().put(key, value)
-    }
-
-    override fun remove(key: K) {
-        getStorageIfExists()?.remove(key)
-    }
-
-    override fun append(key: K, value: V) {
-        getStorageOrCreateNew().appendDataWithoutCache(key, value)
-    }
-
-    @Synchronized
-    override fun clean() {
-        try {
-            storage?.close()
-        } catch (ignored: Throwable) {
-        }
-
-        JpsPersistentHashMap.deleteFilesStartingWith(storageFile)
-        storage = null
-    }
-
-    @Synchronized
-    override fun flush(memoryCachesOnly: Boolean) {
-        val existingStorage = storage ?: return
-
-        if (memoryCachesOnly) {
-            if (existingStorage.isDirty) {
-                existingStorage.dropMemoryCaches()
-            }
-        } else {
-            existingStorage.force()
-        }
-    }
-
-    @Synchronized
-    override fun close() {
-        storage?.close()
-    }
-
-    private fun createMap(): JpsPersistentHashMap<K, V> =
-        JpsPersistentHashMap(storageFile, keyDescriptor, valueExternalizer)
-}

build.gradle.kts

@@ -27,8 +27,9 @@ buildscript {
     dependencies {
         bootstrapCompilerClasspath(kotlin("compiler-embeddable", bootstrapKotlinVersion))
 
-        classpath("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.20")
+        classpath("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.21")
         classpath(kotlin("gradle-plugin", bootstrapKotlinVersion))
+        classpath(kotlin("serialization", bootstrapKotlinVersion))
         classpath("org.jetbrains.dokka:dokka-gradle-plugin:0.9.17")
         classpath("org.jfrog.buildinfo:build-info-extractor-gradle:4.17.2")
     }
@@ -167,9 +168,8 @@ extra["versions.junit"] = "4.12"
 extra["versions.javaslang"] = "2.0.6"
 extra["versions.ant"] = "1.8.2"
 extra["versions.android"] = "2.3.1"
-val coroutinesVersion = if (Platform[192].orHigher()) "1.3.7" else "1.1.1"
-extra["versions.kotlinx-coroutines-core"] = coroutinesVersion
-extra["versions.kotlinx-coroutines-jdk8"] = coroutinesVersion
+extra["versions.kotlinx-coroutines-core"] = "1.3.8"
+extra["versions.kotlinx-coroutines-jdk8"] = "1.3.8"
 extra["versions.json"] = "20160807"
 extra["versions.native-platform"] = "0.14"
 extra["versions.ant-launcher"] = "1.8.0"
@@ -188,13 +188,13 @@ extra["versions.kotlinx-collections-immutable-jvm"] = immutablesVersion
 extra["versions.ktor-network"] = "1.0.1"
 
 if (!project.hasProperty("versions.kotlin-native")) {
-    extra["versions.kotlin-native"] = "1.4.30-dev-16766"
+    extra["versions.kotlin-native"] = "1.4.30-dev-17200"
 }
 
 val intellijUltimateEnabled by extra(project.kotlinBuildProperties.intellijUltimateEnabled)
 val effectSystemEnabled by extra(project.getBooleanProperty("kotlin.compiler.effectSystemEnabled") ?: false)
 val newInferenceEnabled by extra(project.getBooleanProperty("kotlin.compiler.newInferenceEnabled") ?: false)
-val useJvmIrBackend by extra(project.getBooleanProperty("kotlin.build.useIR") ?: false)
+val useJvmIrBackend by extra(project.kotlinBuildProperties.useIR)
 
 val intellijSeparateSdks = project.getBooleanProperty("intellijSeparateSdks") ?: false
 
@@ -292,7 +292,8 @@ extra["compilerModules"] = arrayOf(
     ":compiler:fir:jvm",
     ":compiler:fir:checkers",
     ":compiler:fir:entrypoint",
-    ":compiler:fir:analysis-tests"
+    ":compiler:fir:analysis-tests",
+    ":wasm:wasm.ir"
 )
 
 extra["compilerModulesForJps"] = listOf(
@@ -650,8 +651,11 @@ tasks {
     }
 
     register("wasmCompilerTest") {
-//  TODO: fix once
-//        dependsOn(":js:js.tests:wasmTest")
+        dependsOn(":js:js.tests:wasmTest")
+        // Windows WABT release requires Visual C++ Redistributable
+        if (!kotlinBuildProperties.isTeamcityBuild || !org.gradle.internal.os.OperatingSystem.current().isWindows) {
+            dependsOn(":wasm:wasm.ir:test")
+        }
     }
 
     register("nativeCompilerTest") {
@@ -866,8 +870,8 @@ tasks {
             ":compiler:test",
             ":js:js.tests:test"
         )
-        if (Ide.IJ193.orHigher())
-            dependsOn(":kotlin-gradle-plugin-integration-tests:test")
+
+        dependsOn(":kotlin-gradle-plugin-integration-tests:test")
         if (Ide.AS40.orHigher())
             dependsOn(":kotlin-ultimate:ide:android-studio-native:test")
 
@@ -901,7 +905,6 @@ tasks {
                 ":prepare:ide-plugin-dependencies:incremental-compilation-impl-tests-for-ide:publish",
                 ":prepare:ide-plugin-dependencies:kotlin-build-common-tests-for-ide:publish",
                 ":prepare:ide-plugin-dependencies:kotlin-compiler-for-ide:publish",
-                ":prepare:ide-plugin-dependencies:kotlin-dist-for-ide:publish",
                 ":prepare:ide-plugin-dependencies:kotlin-gradle-statistics-for-ide:publish",
                 ":prepare:ide-plugin-dependencies:kotlinx-serialization-compiler-plugin-for-ide:publish",
                 ":prepare:ide-plugin-dependencies:noarg-compiler-plugin-for-ide:publish",
@@ -922,7 +925,8 @@ tasks {
                 ":kotlin-reflect:publish",
                 ":kotlin-main-kts:publish",
                 ":kotlin-stdlib-js:publish",
-                ":kotlin-test:kotlin-test-js:publish"
+                ":kotlin-test:kotlin-test-js:publish",
+                ":kotlin-coroutines-experimental-compat:publish"
             )
         }
     }

buildSrc/build.gradle.kts

@@ -1,3 +1,5 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 extra["versions.native-platform"] = "0.14"
 
 buildscript {
@@ -22,7 +24,7 @@ buildscript {
     }
 
     dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.20")
+        classpath("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.21")
         classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${project.bootstrapKotlinVersion}")
         classpath("org.jetbrains.kotlin:kotlin-sam-with-receiver:${project.bootstrapKotlinVersion}")
     }
@@ -97,7 +99,7 @@ repositories {
 dependencies {
     implementation(kotlin("stdlib", embeddedKotlinVersion))
     implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:${project.bootstrapKotlinVersion}")
-    implementation("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.20")
+    implementation("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.21")
     implementation("com.gradle.publish:plugin-publish-plugin:0.12.0")
 
     implementation("net.rubygrapefruit:native-platform:${property("versions.native-platform")}")
@@ -126,6 +128,11 @@ java {
     targetCompatibility = JavaVersion.VERSION_1_8
 }
 
+tasks.withType<KotlinCompile>().configureEach {
+    kotlinOptions.freeCompilerArgs +=
+        listOf("-Xopt-in=kotlin.RequiresOptIn", "-Xskip-runtime-version-check")
+}
+
 tasks["build"].dependsOn(":prepare-deps:build")
 
 allprojects {

buildSrc/settings.gradle

@@ -20,7 +20,7 @@ buildscript {
         }
     }
     dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.20")
+        classpath("org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.21")
     }
 }
 

buildSrc/src/main/kotlin/embeddable.kt

@@ -5,10 +5,13 @@ import org.gradle.api.Project
 import org.gradle.api.file.DuplicatesStrategy
 import org.gradle.api.tasks.TaskProvider
 import org.gradle.jvm.tasks.Jar
-import org.gradle.kotlin.dsl.*
+import org.gradle.kotlin.dsl.named
+import org.gradle.kotlin.dsl.project
+import org.gradle.kotlin.dsl.provideDelegate
+import org.gradle.kotlin.dsl.register
 import java.io.File
 
-val kotlinEmbeddableRootPackage = "org.jetbrains.kotlin"
+const val kotlinEmbeddableRootPackage = "org.jetbrains.kotlin"
 
 val packagesToRelocate =
     listOf(
@@ -31,21 +34,23 @@ val packagesToRelocate =
 // But due to the shadow plugin bug (https://github.com/johnrengelman/shadow/issues/262) it is not possible to use
 // packagesToRelocate list to for the include list. Therefore the exclude list has to be created.
 val packagesToExcludeFromDummy =
-        listOf("org/jetbrains/kotlin/**",
-               "org/intellij/lang/annotations/**",
-               "org/jetbrains/jps/**",
-               "META-INF/**",
-               "com/sun/jna/**",
-               "com/thoughtworks/xstream/**",
-               "javaslang/**",
-               "*.proto",
-               "messages/**",
-               "net/sf/cglib/**",
-               "one/util/streamex/**",
-               "org/iq80/snappy/**",
-               "org/jline/**",
-               "org/xmlpull/**",
-               "*.txt")
+    listOf(
+        "org/jetbrains/kotlin/**",
+        "org/intellij/lang/annotations/**",
+        "org/jetbrains/jps/**",
+        "META-INF/**",
+        "com/sun/jna/**",
+        "com/thoughtworks/xstream/**",
+        "javaslang/**",
+        "*.proto",
+        "messages/**",
+        "net/sf/cglib/**",
+        "one/util/streamex/**",
+        "org/iq80/snappy/**",
+        "org/jline/**",
+        "org/xmlpull/**",
+        "*.txt"
+    )
 
 private fun ShadowJar.configureEmbeddableCompilerRelocation(withJavaxInject: Boolean = true) {
     relocate("com.google.protobuf", "org.jetbrains.kotlin.protobuf")
@@ -67,8 +72,8 @@ private fun Project.compilerShadowJar(taskName: String, body: ShadowJar.() -> Un
     dependencies.add(compilerJar.name, dependencies.project(":kotlin-compiler", configuration = "runtimeJar"))
 
     return tasks.register<ShadowJar>(taskName) {
-        destinationDir = File(buildDir, "libs")
-        setDuplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+        destinationDirectory.set(project.file(File(buildDir, "libs")))
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
         from(compilerJar)
         body()
     }
@@ -107,8 +112,8 @@ fun Project.embeddableCompilerDummyForDependenciesRewriting(
     )
 
     return tasks.register<ShadowJar>(taskName) {
-        destinationDir = File(buildDir, "libs")
-        setDuplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+        destinationDirectory.set(project.file(File(buildDir, "libs")))
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
         from(compilerDummyJar)
         configureEmbeddableCompilerRelocation(withJavaxInject = false)
         body()
@@ -119,7 +124,7 @@ fun Project.rewriteDepsToShadedJar(
     originalJarTask: TaskProvider<out Jar>, shadowJarTask: TaskProvider<out Jar>, body: Jar.() -> Unit = {}
 ): TaskProvider<out Jar> {
     originalJarTask.configure {
-        classifier = "original"
+        archiveClassifier.set("original")
     }
 
     val compilerDummyJarFile by lazy { configurations.getAt("compilerDummyJar").singleFile }
@@ -132,7 +137,7 @@ fun Project.rewriteDepsToShadedJar(
         // which leads to the content of that JAR being excluded as well:
         exclude { it.file == compilerDummyJarFile }
 
-        classifier = ""
+        archiveClassifier.set("original")
         body()
     }
     return shadowJarTask

buildSrc/src/main/kotlin/localDependencies.kt

@@ -132,12 +132,10 @@ object IntellijRootUtils {
     }
 }
 
-fun ModuleDependency.includeIntellijCoreJarDependencies(project: Project) =
-    includeJars(*(project.rootProject.extra["IntellijCoreDependencies"] as List<String>).toTypedArray(), rootProject = project.rootProject)
-
-fun ModuleDependency.includeIntellijCoreJarDependencies(project: Project, jarsFilterPredicate: (String) -> Boolean) =
+@Suppress("UNCHECKED_CAST")
+fun ModuleDependency.includeIntellijCoreJarDependencies(project: Project, jarsFilterPredicate: (String) -> Boolean = { true }): Unit =
     includeJars(
-        *(project.rootProject.extra["IntellijCoreDependencies"] as List<String>).filter { jarsFilterPredicate(it) }.toTypedArray(),
+        *(project.rootProject.extra["IntellijCoreDependencies"] as List<String>).filter(jarsFilterPredicate).toTypedArray(),
         rootProject = project.rootProject
     )
 

buildSrc/src/main/kotlin/pluginMarkers.kt

@@ -18,7 +18,7 @@ import java.util.*
 
 internal const val PLUGIN_MARKER_SUFFIX = ".gradle.plugin"
 
-@UseExperimental(ExperimentalStdlibApi::class)
+@OptIn(ExperimentalStdlibApi::class)
 fun Project.publishPluginMarkers(withEmptyJars: Boolean = true) {
     val pluginDevelopment = extensions.getByType<PluginBundleExtension>()
     val publishingExtension = extensions.getByType<PublishingExtension>()

buildSrc/src/main/kotlin/plugins/KotlinBuildPublishingPlugin.kt

@@ -8,7 +8,6 @@ package plugins
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.api.attributes.Usage
-import org.gradle.api.component.AdhocComponentWithVariants
 import org.gradle.api.component.SoftwareComponentFactory
 import org.gradle.api.plugins.JavaBasePlugin
 import org.gradle.api.publish.PublishingExtension
@@ -23,7 +22,6 @@ import org.gradle.plugins.signing.SigningPlugin
 import java.util.*
 import javax.inject.Inject
 
-
 class KotlinBuildPublishingPlugin @Inject constructor(
     private val componentFactory: SoftwareComponentFactory
 ) : Plugin<Project> {
@@ -47,7 +45,7 @@ class KotlinBuildPublishingPlugin @Inject constructor(
             }
         }
 
-        val kotlinLibraryComponent = componentFactory.adhoc(ADHOC_COMPONENT_NAME) as AdhocComponentWithVariants
+        val kotlinLibraryComponent = componentFactory.adhoc(ADHOC_COMPONENT_NAME)
         components.add(kotlinLibraryComponent)
         kotlinLibraryComponent.addVariantsFromConfiguration(publishedCompile) { mapToMavenScope("compile") }
         kotlinLibraryComponent.addVariantsFromConfiguration(publishedRuntime) { mapToMavenScope("runtime") }
@@ -139,7 +137,7 @@ class KotlinBuildPublishingPlugin @Inject constructor(
         const val COMPILE_CONFIGURATION = "publishedCompile"
         const val RUNTIME_CONFIGURATION = "publishedRuntime"
 
-        @UseExperimental(ExperimentalStdlibApi::class)
+        @OptIn(ExperimentalStdlibApi::class)
         fun humanReadableName(project: Project) =
             project.name.split("-").joinToString(separator = " ") { it.capitalize(Locale.ROOT) }
     }
@@ -163,4 +161,4 @@ fun TaskProvider<PublishToMavenRepository>.configureRepository() = configure {
             }
         }
     }
-}
+}

buildSrc/src/main/kotlin/plugins/PublishedKotlinModule.kt

@@ -1,3 +1,4 @@
+@file:Suppress("DEPRECATION")
 package plugins
 
 import org.codehaus.groovy.runtime.InvokerHelper
@@ -16,10 +17,8 @@ import org.gradle.plugins.signing.Sign
 import org.gradle.plugins.signing.SigningExtension
 import kotlin.properties.Delegates
 
-
 /**
  * Configures a Kotlin module for publication.
- *
  */
 open class PublishedKotlinModule : Plugin<Project> {
 

buildSrc/src/main/kotlin/tasks.kt

@@ -154,7 +154,7 @@ fun Project.projectTest(
 
     var subProjectTempRoot: Path? = null
     doFirst {
-        val teamcity = rootProject.findProperty("teamcity") as? Map<Any?, *>
+        val teamcity = rootProject.findProperty("teamcity") as? Map<*, *>
         val systemTempRoot =
             // TC by default doesn't switch `teamcity.build.tempDir` to 'java.io.tmpdir' so it could cause to wasted disk space
             // Should be fixed soon on Teamcity side
@@ -180,7 +180,7 @@ fun Project.projectTest(
     if (parallel) {
         maxParallelForks =
             project.findProperty("kotlin.test.maxParallelForks")?.toString()?.toInt()
-                ?: Math.max(Runtime.getRuntime().availableProcessors() / if (kotlinBuildProperties.isTeamcityBuild) 2 else 4, 1)
+                ?: (Runtime.getRuntime().availableProcessors() / if (kotlinBuildProperties.isTeamcityBuild) 2 else 4).coerceAtLeast(1)
     }
     body()
 }

compiler/android-tests/build.gradle.kts

@@ -34,9 +34,7 @@ dependencies {
     Platform[201].orLower {
         testCompile(intellijDep()) { includeJars("groovy-all", rootProject = rootProject) }
     }
-    Platform[192].orHigher {
-        testCompile(intellijPluginDep("java")) { includeJars("jps-builders") }
-    }
+    testCompile(intellijPluginDep("java")) { includeJars("jps-builders") }
     testCompile(jpsStandalone()) { includeJars("jps-model") }
     testCompile(jpsBuildTest())
 }

compiler/android-tests/tests/org/jetbrains/kotlin/android/tests/CodegenTestsOnAndroidGenerator.kt

@@ -27,6 +27,9 @@ import org.junit.Assert
 import java.io.File
 import java.io.FileWriter
 import java.io.IOException
+import kotlin.io.path.ExperimentalPathApi
+import kotlin.io.path.Path
+import kotlin.io.path.createTempDirectory
 import kotlin.test.assertTrue
 
 data class ConfigurationKey(val kind: ConfigurationKind, val jdkKind: TestJdkKind, val configuration: String)
@@ -345,14 +348,15 @@ class CodegenTestsOnAndroidGenerator private constructor(private val pathManager
             FileWriter(file).use { fw -> fw.write("sdk.dir=$sdkRoot") }
         }
 
+        @OptIn(ExperimentalPathApi::class)
         @JvmStatic
         fun main(args: Array<String>) {
-            val tmpFolder = createTempDir()
-            println("Created temporary folder for android tests: " + tmpFolder.absolutePath)
-            val rootFolder = File("")
-            val pathManager = PathManager(rootFolder.absolutePath, tmpFolder.absolutePath)
+            val tmpFolder = createTempDirectory().toAbsolutePath().toString()
+            println("Created temporary folder for android tests: $tmpFolder")
+            val rootFolder = Path("").toAbsolutePath().toString()
+            val pathManager = PathManager(rootFolder, tmpFolder)
             generate(pathManager, true)
-            println("Android test project is generated into " + tmpFolder.absolutePath + " folder")
+            println("Android test project is generated into $tmpFolder folder")
         }
     }
 }

compiler/backend-common/src/org/jetbrains/kotlin/backend/common/BackendException.kt

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.backend.common
+
+class BackendException(message: String, cause: Throwable?) : IllegalStateException(message, cause)

compiler/backend-common/src/org/jetbrains/kotlin/backend/common/CodegenUtil.kt

@@ -232,12 +232,13 @@ object CodegenUtil {
     }
 
     @JvmStatic
-    fun reportBackendException(exception: Throwable, phase: String, fileUrl: String?): Nothing {
+    fun reportBackendException(exception: Throwable, phase: String, location: String?, additionalMessage: String? = null): Nothing {
         // CompilationException (the only KotlinExceptionWithAttachments possible here) is already supposed
         // to have all information about the context.
         if (exception is KotlinExceptionWithAttachments) throw exception
-        throw IllegalStateException(
-            getExceptionMessage("Backend", "Exception during $phase", exception, fileUrl),
+        throw BackendException(
+            getExceptionMessage("Backend", "Exception during $phase", exception, location) +
+                    additionalMessage?.let { "\n" + it }.orEmpty(),
             exception
         )
     }

compiler/backend/src/org/jetbrains/kotlin/codegen/ClassFileFactory.java

@@ -254,14 +254,14 @@ public class ClassFileFactory implements OutputFileCollection {
     public PackageCodegen forPackage(@NotNull FqName fqName, @NotNull Collection<KtFile> files) {
         assert !isDone : "Already done!";
         registerSourceFiles(files);
-        return state.getCodegenFactory().createPackageCodegen(state, files, fqName);
+        return new PackageCodegenImpl(state, files, fqName);
     }
 
     @NotNull
     public MultifileClassCodegen forMultifileClass(@NotNull FqName facadeFqName, @NotNull Collection<KtFile> files) {
         assert !isDone : "Already done!";
         registerSourceFiles(files);
-        return state.getCodegenFactory().createMultifileClassCodegen(state, files, facadeFqName);
+        return new MultifileClassCodegenImpl(state, files, facadeFqName);
     }
 
     private void registerSourceFiles(Collection<KtFile> files) {

compiler/backend/src/org/jetbrains/kotlin/codegen/CodegenFactory.kt

@@ -26,10 +26,6 @@ import org.jetbrains.kotlin.psi.KtFile
 interface CodegenFactory {
     fun generateModule(state: GenerationState, files: Collection<KtFile>)
 
-    fun createPackageCodegen(state: GenerationState, files: Collection<KtFile>, fqName: FqName): PackageCodegen
-
-    fun createMultifileClassCodegen(state: GenerationState, files: Collection<KtFile>, fqName: FqName): MultifileClassCodegen
-
     companion object {
         fun doCheckCancelled(state: GenerationState) {
             if (state.classBuilderMode.generateBodies) {
@@ -49,8 +45,7 @@ object DefaultCodegenFactory : CodegenFactory {
 
             if (fileClassInfo.withJvmMultifileClass) {
                 filesInMultifileClasses.putValue(fileClassInfo.facadeClassFqName, file)
-            }
-            else {
+            } else {
                 filesInPackages.putValue(file.packageFqName, file)
             }
         }
@@ -68,23 +63,17 @@ object DefaultCodegenFactory : CodegenFactory {
         }
     }
 
-    override fun createPackageCodegen(state: GenerationState, files: Collection<KtFile>, fqName: FqName) =
-            PackageCodegenImpl(state, files, fqName)
-
-    override fun createMultifileClassCodegen(state: GenerationState, files: Collection<KtFile>, fqName: FqName) =
-            MultifileClassCodegenImpl(state, files, fqName)
-
     private fun generateMultifileClass(state: GenerationState, multifileClassFqName: FqName, files: Collection<KtFile>) {
         state.factory.forMultifileClass(multifileClassFqName, files).generate()
     }
 
     fun generatePackage(
-            state: GenerationState,
-            packageFqName: FqName,
-            jetFiles: Collection<KtFile>
+        state: GenerationState,
+        packageFqName: FqName,
+        ktFiles: Collection<KtFile>
     ) {
         // We do not really generate package class, but use old package fqName to identify package in module-info.
         //FqName packageClassFqName = PackageClassUtils.getPackageClassFqName(packageFqName);
-        state.factory.forPackage(packageFqName, jetFiles).generate()
+        state.factory.forPackage(packageFqName, ktFiles).generate()
     }
 }

compiler/backend/src/org/jetbrains/kotlin/codegen/DefaultParameterValueSubstitutor.kt

@@ -27,13 +27,13 @@ import org.jetbrains.kotlin.psi.KtParameter
 import org.jetbrains.kotlin.psi.KtPureClassOrObject
 import org.jetbrains.kotlin.psi.KtPureElement
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
-import org.jetbrains.kotlin.resolve.DescriptorUtils.isInterface
 import org.jetbrains.kotlin.resolve.calls.components.hasDefaultValue
 import org.jetbrains.kotlin.resolve.isInlineClass
 import org.jetbrains.kotlin.resolve.jvm.AsmTypes
 import org.jetbrains.kotlin.resolve.jvm.annotations.findJvmOverloadsAnnotation
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOriginKind
+import org.jetbrains.kotlin.resolve.jvm.shouldHideConstructorDueToInlineClassTypeValueParameters
 import org.jetbrains.org.objectweb.asm.Label
 import org.jetbrains.org.objectweb.asm.Opcodes
 import org.jetbrains.org.objectweb.asm.Type
@@ -268,6 +268,7 @@ class DefaultParameterValueSubstitutor(val state: GenerationState) {
 
         if (classOrObject.isLocal) return false
         if (classDescriptor.isInline) return false
+        if (shouldHideConstructorDueToInlineClassTypeValueParameters(constructorDescriptor)) return false
 
         if (CodegenBinding.canHaveOuter(state.bindingContext, classDescriptor)) return false
 

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -44,8 +44,10 @@ import org.jetbrains.kotlin.codegen.when.SwitchCodegen;
 import org.jetbrains.kotlin.codegen.when.SwitchCodegenProvider;
 import org.jetbrains.kotlin.config.ApiVersion;
 import org.jetbrains.kotlin.config.JVMAssertionsMode;
+import org.jetbrains.kotlin.config.JVMConfigurationKeys;
 import org.jetbrains.kotlin.config.LanguageFeature;
 import org.jetbrains.kotlin.descriptors.*;
+import org.jetbrains.kotlin.descriptors.impl.AnonymousFunctionDescriptor;
 import org.jetbrains.kotlin.descriptors.impl.LocalVariableDescriptor;
 import org.jetbrains.kotlin.descriptors.impl.SyntheticFieldDescriptor;
 import org.jetbrains.kotlin.descriptors.impl.TypeAliasConstructorDescriptor;
@@ -1705,26 +1707,38 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
             Type returnType;
             KotlinType returnKotlinType;
             if (isNonLocalReturn) {
-                // This is inline lambda. Find inline-site and check, whether it is suspend functions returning unboxed inline class
-                CodegenContext<?> inlineSiteContext = this.context.getFirstCrossInlineOrNonInlineContext();
-                KotlinType originalInlineClass = null;
-                boolean invokeSuspendOfLambda = false;
-                FunctionDescriptor inlineSiteDescriptor = null;
-                if (inlineSiteContext instanceof MethodContext) {
-                    inlineSiteDescriptor = ((MethodContext) inlineSiteContext).getFunctionDescriptor();
-                    originalInlineClass = CoroutineCodegenUtilKt
-                            .originalReturnTypeOfSuspendFunctionReturningUnboxedInlineClass(inlineSiteDescriptor, typeMapper);
-                    invokeSuspendOfLambda = CoroutineCodegenUtilKt.isInvokeSuspendOfLambda(inlineSiteDescriptor);
-                }
-                if (originalInlineClass != null) {
-                    returnType = typeMapper.mapType(originalInlineClass);
-                    returnKotlinType = originalInlineClass;
-                } else if (!invokeSuspendOfLambda) {
-                    returnType = nonLocalReturn.returnType.getType();
-                    returnKotlinType = nonLocalReturn.returnType.getKotlinType();
-                } else {
+                FunctionDescriptor returnTarget =
+                        nonLocalReturn.descriptor instanceof FunctionDescriptor
+                        ? (FunctionDescriptor) nonLocalReturn.descriptor
+                        : null;
+                if (returnTarget == null || !returnTarget.isSuspend()) {
+                    JvmKotlinType jvmKotlinType = nonLocalReturn.getJvmKotlinType(typeMapper);
+                    returnType = jvmKotlinType.getType();
+                    returnKotlinType = jvmKotlinType.getKotlinType();
+                } else if (returnTarget instanceof AnonymousFunctionDescriptor) {
+                    // Suspend lambdas always return Any?
                     returnType = OBJECT_TYPE;
-                    returnKotlinType = inlineSiteDescriptor.getReturnType();
+                    returnKotlinType = state.getModule().getBuiltIns().getNullableAnyType();
+                } else {
+                    // This is inline lambda, but return target is ordinary, yet suspend, function.
+                    // Find inline-site and check, whether it is suspend functions returning unboxed inline class
+                    CodegenContext<?> inlineSiteContext = this.context.getFirstCrossInlineOrNonInlineContext();
+                    KotlinType originalInlineClass = null;
+                    if (inlineSiteContext instanceof MethodContext) {
+                        FunctionDescriptor view = CoroutineCodegenUtilKt.getOrCreateJvmSuspendFunctionView(returnTarget, state);
+                        originalInlineClass =
+                                CoroutineCodegenUtilKt.originalReturnTypeOfSuspendFunctionReturningUnboxedInlineClass(view, typeMapper);
+                    }
+                    if (originalInlineClass != null) {
+                        // As an optimization, suspend functions, returning inline classes with reference underlying
+                        // type return unboxed inline class. Save the type so the coercer will not box it.
+                        returnType = typeMapper.mapType(originalInlineClass);
+                        returnKotlinType = originalInlineClass;
+                    } else {
+                        JvmKotlinType jvmKotlinType = nonLocalReturn.getJvmKotlinType(typeMapper);
+                        returnType = jvmKotlinType.getType();
+                        returnKotlinType = jvmKotlinType.getKotlinType();
+                    }
                 }
             }
             else {
@@ -1788,13 +1802,7 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
                     FunctionDescriptor containingFunction =
                             BindingContextUtils.getContainingFunctionSkipFunctionLiterals(descriptor, true).getFirst();
                     //FIRST_FUN_LABEL to prevent clashing with existing labels
-                    return new NonLocalReturnInfo(
-                            new JvmKotlinType(
-                                    typeMapper.mapReturnType(containingFunction),
-                                    containingFunction.getReturnType()
-                            ),
-                            FIRST_FUN_LABEL
-                    );
+                    return new NonLocalReturnInfo(containingFunction, FIRST_FUN_LABEL);
                 } else {
                     //local
                     return null;
@@ -1807,10 +1815,7 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
                 assert element != null : "Expression should be not null " + expression.getText();
                 assert elementDescriptor != null : "Descriptor should be not null: " + element.getText();
                 CallableDescriptor function = (CallableDescriptor) elementDescriptor;
-                return new NonLocalReturnInfo(
-                        new JvmKotlinType(typeMapper.mapReturnType(function), function.getReturnType()),
-                        expression.getLabelName()
-                );
+                return new NonLocalReturnInfo(function, expression.getLabelName());
             }
         }
         return null;
@@ -2680,7 +2685,21 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
             fd = ArgumentGeneratorKt.getFunctionWithDefaultArguments(fd);
         }
 
-        return typeMapper.mapToCallableMethod(fd, superCall, null, resolvedCall);
+        CallableMethod method = typeMapper.mapToCallableMethod(fd, superCall, null, resolvedCall);
+
+        if (method.getAsmMethod().getName().contains("-") &&
+            !state.getConfiguration().getBoolean(JVMConfigurationKeys.USE_OLD_INLINE_CLASSES_MANGLING_SCHEME)
+        ) {
+            Boolean classFileContainsMethod =
+                    InlineClassesCodegenUtilKt.classFileContainsMethod(fd, state, method.getAsmMethod());
+            if (classFileContainsMethod != null && !classFileContainsMethod) {
+                typeMapper.setUseOldManglingRulesForFunctionAcceptingInlineClass(true);
+                method = typeMapper.mapToCallableMethod(fd, superCall, null, resolvedCall);
+                typeMapper.setUseOldManglingRulesForFunctionAcceptingInlineClass(false);
+            }
+        }
+
+        return method;
     }
 
     public void invokeMethodWithArguments(
@@ -2896,6 +2915,17 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
 
         sourceCompiler.initializeInlineFunctionContext(functionDescriptor);
         JvmMethodSignature signature = typeMapper.mapSignatureWithGeneric(functionDescriptor, sourceCompiler.getContextKind());
+        if (signature.getAsmMethod().getName().contains("-") &&
+            !state.getConfiguration().getBoolean(JVMConfigurationKeys.USE_OLD_INLINE_CLASSES_MANGLING_SCHEME)
+        ) {
+            Boolean classFileContainsMethod =
+                    InlineClassesCodegenUtilKt.classFileContainsMethod(functionDescriptor, state, signature.getAsmMethod());
+            if (classFileContainsMethod != null && !classFileContainsMethod) {
+                typeMapper.setUseOldManglingRulesForFunctionAcceptingInlineClass(true);
+                signature = typeMapper.mapSignatureWithGeneric(functionDescriptor, sourceCompiler.getContextKind());
+                typeMapper.setUseOldManglingRulesForFunctionAcceptingInlineClass(false);
+            }
+        }
         Type methodOwner = typeMapper.mapImplementationOwner(functionDescriptor);
         if (isDefaultCompilation) {
             return new InlineCodegenForDefaultBody(functionDescriptor, this, state, methodOwner, signature, sourceCompiler);
@@ -5427,14 +5457,18 @@ The "returned" value of try expression with no finally is either the last expres
 
     private static class NonLocalReturnInfo {
 
-        private final JvmKotlinType returnType;
+        private final CallableDescriptor descriptor;
 
         private final String labelName;
 
-        private NonLocalReturnInfo(@NotNull JvmKotlinType type, @NotNull String name) {
-            returnType = type;
+        private NonLocalReturnInfo(@NotNull CallableDescriptor descriptor, @NotNull String name) {
+            this.descriptor = descriptor;
             labelName = name;
         }
+
+        private JvmKotlinType getJvmKotlinType(@NotNull KotlinTypeMapper typeMapper) {
+            return new JvmKotlinType(typeMapper.mapReturnType(descriptor), descriptor.getReturnType());
+        }
     }
 
     @NotNull

compiler/backend/src/org/jetbrains/kotlin/codegen/PackageCodegenImpl.java

@@ -75,7 +75,7 @@ public class PackageCodegenImpl implements PackageCodegen {
             }
             catch (Throwable e) {
                 VirtualFile vFile = file.getVirtualFile();
-                CodegenUtil.reportBackendException(e, "file facade code generation", vFile == null ? null : vFile.getUrl());
+                CodegenUtil.reportBackendException(e, "file facade code generation", vFile == null ? null : vFile.getUrl(), null);
             }
         }
     }

compiler/backend/src/org/jetbrains/kotlin/codegen/PackagePartCodegen.java

@@ -42,9 +42,11 @@ import org.jetbrains.org.objectweb.asm.Type;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 import static org.jetbrains.kotlin.codegen.DescriptorAsmUtil.writeAnnotationData;
 import static org.jetbrains.kotlin.load.java.JvmAnnotationNames.METADATA_PACKAGE_NAME_FIELD_NAME;
+import static org.jetbrains.kotlin.resolve.jvm.annotations.JvmAnnotationUtilKt.JVM_SYNTHETIC_ANNOTATION_FQ_NAME;
 import static org.jetbrains.org.objectweb.asm.Opcodes.*;
 
 public class PackagePartCodegen extends MemberCodegen<KtFile> {
@@ -63,8 +65,20 @@ public class PackagePartCodegen extends MemberCodegen<KtFile> {
 
     @Override
     protected void generateDeclaration() {
+        boolean isSynthetic = false;
+        List<AnnotationDescriptor> fileAnnotationDescriptors = new ArrayList<>();
+        for (KtAnnotationEntry annotationEntry : element.getAnnotationEntries()) {
+            AnnotationDescriptor annotationDescriptor = state.getBindingContext().get(BindingContext.ANNOTATION, annotationEntry);
+            if (annotationDescriptor != null) {
+                fileAnnotationDescriptors.add(annotationDescriptor);
+                if (Objects.equals(annotationDescriptor.getFqName(), JVM_SYNTHETIC_ANNOTATION_FQ_NAME)) {
+                    isSynthetic = true;
+                }
+            }
+        }
+
         v.defineClass(element, state.getClassFileVersion(),
-                      ACC_PUBLIC | ACC_FINAL | ACC_SUPER,
+                      ACC_PUBLIC | ACC_FINAL | ACC_SUPER | (isSynthetic ? ACC_SYNTHETIC : 0),
                       packagePartType.getInternalName(),
                       null,
                       "java/lang/Object",
@@ -74,17 +88,6 @@ public class PackagePartCodegen extends MemberCodegen<KtFile> {
 
         generatePropertyMetadataArrayFieldIfNeeded(packagePartType);
 
-        generateAnnotationsForPartClass();
-    }
-
-    private void generateAnnotationsForPartClass() {
-        List<AnnotationDescriptor> fileAnnotationDescriptors = new ArrayList<>();
-        for (KtAnnotationEntry annotationEntry : element.getAnnotationEntries()) {
-            AnnotationDescriptor annotationDescriptor = state.getBindingContext().get(BindingContext.ANNOTATION, annotationEntry);
-            if (annotationDescriptor != null) {
-                fileAnnotationDescriptors.add(annotationDescriptor);
-            }
-        }
         Annotated annotatedFile = new AnnotatedImpl(Annotations.Companion.create(fileAnnotationDescriptors));
         AnnotationCodegen.forClass(v.getVisitor(), this, state).genAnnotations(annotatedFile, null, null);
     }

compiler/backend/src/org/jetbrains/kotlin/codegen/StackValue.java

@@ -672,8 +672,8 @@ public abstract class StackValue {
                 box(fromType, toType, v);
             }
         }
-        else if (fromType.getSort() == Type.OBJECT) {
-            //toType is primitive here
+        else if (fromType.getSort() == Type.OBJECT || fromType.getSort() == Type.ARRAY) {
+            // here toType is primitive and fromType is reference (object or array)
             Type unboxedType = unboxPrimitiveTypeOrNull(fromType);
             if (unboxedType != null) {
                 unbox(fromType, unboxedType, v);

compiler/backend/src/org/jetbrains/kotlin/codegen/inlineClassesCodegenUtil.kt

@@ -5,15 +5,28 @@
 
 package org.jetbrains.kotlin.codegen
 
+import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
+import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor
 import org.jetbrains.kotlin.descriptors.impl.AnonymousFunctionDescriptor
+import org.jetbrains.kotlin.load.kotlin.JvmPackagePartSource
+import org.jetbrains.kotlin.load.kotlin.VirtualFileFinder
+import org.jetbrains.kotlin.name.ClassId
+import org.jetbrains.kotlin.resolve.descriptorUtil.classId
 import org.jetbrains.kotlin.resolve.isInlineClassType
 import org.jetbrains.kotlin.resolve.underlyingRepresentation
+import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedClassDescriptor
+import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedSimpleFunctionDescriptor
 import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.typeUtil.isAnyOrNullableAny
 import org.jetbrains.kotlin.types.typeUtil.isTypeParameter
+import org.jetbrains.org.objectweb.asm.ClassReader
+import org.jetbrains.org.objectweb.asm.ClassVisitor
+import org.jetbrains.org.objectweb.asm.MethodVisitor
+import org.jetbrains.org.objectweb.asm.Opcodes
+import org.jetbrains.org.objectweb.asm.commons.Method
 
 fun KotlinType.isInlineClassWithUnderlyingTypeAnyOrAnyN(): Boolean {
     if (!isInlineClassType()) return false
@@ -26,4 +39,39 @@ fun CallableDescriptor.isGenericParameter(): Boolean {
     if (containingDeclaration is AnonymousFunctionDescriptor) return true
     val index = containingDeclaration.valueParameters.indexOf(this)
     return containingDeclaration.overriddenDescriptors.any { it.original.valueParameters[index].type.isTypeParameter() }
+}
+
+fun classFileContainsMethod(descriptor: FunctionDescriptor, state: GenerationState, method: Method): Boolean? {
+    if (descriptor !is DeserializedSimpleFunctionDescriptor) return null
+
+    val classId: ClassId = when {
+        descriptor.containingDeclaration is DeserializedClassDescriptor -> {
+            (descriptor.containingDeclaration as DeserializedClassDescriptor).classId ?: return null
+        }
+        descriptor.containerSource is JvmPackagePartSource -> {
+            (descriptor.containerSource as JvmPackagePartSource).classId
+        }
+        else -> {
+            return null
+        }
+    }
+
+    val bytes = VirtualFileFinder.getInstance(state.project, state.module).findVirtualFileWithHeader(classId)
+        ?.contentsToByteArray() ?: return null
+    var found = false
+    ClassReader(bytes).accept(object : ClassVisitor(Opcodes.API_VERSION) {
+        override fun visitMethod(
+            access: Int,
+            name: String?,
+            descriptor: String?,
+            signature: String?,
+            exceptions: Array<out String>?
+        ): MethodVisitor? {
+            if (name == method.name && descriptor == method.descriptor) {
+                found = true
+            }
+            return super.visitMethod(access, name, descriptor, signature, exceptions)
+        }
+    }, ClassReader.SKIP_FRAMES)
+    return found
 }

compiler/backend/src/org/jetbrains/kotlin/codegen/serialization/JvmSerializerExtension.kt

@@ -12,6 +12,7 @@ import org.jetbrains.kotlin.codegen.createFreeFakeLocalPropertyDescriptor
 import org.jetbrains.kotlin.codegen.serialization.JvmSerializationBindings.*
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapperBase
+import org.jetbrains.kotlin.config.JVMConfigurationKeys
 import org.jetbrains.kotlin.config.JvmDefaultMode
 import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.descriptors.*
@@ -60,6 +61,7 @@ class JvmSerializerExtension @JvmOverloads constructor(
     override val metadataVersion = state.metadataVersion
     private val jvmDefaultMode = state.jvmDefaultMode
     private val approximator = state.typeApproximator
+    private val useOldManglingScheme = state.useOldManglingSchemeForFunctionsWithInlineClassesInSignatures
 
     override fun shouldUseTypeTable(): Boolean = useTypeTable
     override fun shouldSerializeFunction(descriptor: FunctionDescriptor): Boolean {
@@ -215,6 +217,13 @@ class JvmSerializerExtension @JvmOverloads constructor(
         ) {
             versionRequirementTable?.writeFunctionNameManglingForReturnTypeRequirement(proto::addVersionRequirement)
         }
+
+        if ((requiresFunctionNameManglingForReturnType(descriptor) ||
+                    requiresFunctionNameManglingForParameterTypes(descriptor)) &&
+            !DescriptorUtils.hasJvmNameAnnotation(descriptor) && !useOldManglingScheme
+        ) {
+            versionRequirementTable?.writeNewFunctionNameManglingRequirement(proto::addVersionRequirement)
+        }
     }
 
     private fun MutableVersionRequirementTable.writeInlineParameterNullCheckRequirement(add: (Int) -> Unit) {
@@ -231,6 +240,10 @@ class JvmSerializerExtension @JvmOverloads constructor(
         }
     }
 
+    private fun MutableVersionRequirementTable.writeNewFunctionNameManglingRequirement(add: (Int) -> Unit) {
+        add(writeVersionRequirement(1, 4, 30, ProtoBuf.VersionRequirement.VersionKind.COMPILER_VERSION, this))
+    }
+
     private fun FunctionDescriptor.needsInlineParameterNullCheckRequirement(): Boolean =
         isInline && !isSuspend && !isParamAssertionsDisabled &&
                 !DescriptorVisibilities.isPrivate(visibility) &&
@@ -278,6 +291,9 @@ class JvmSerializerExtension @JvmOverloads constructor(
         }
 
         if (!DescriptorUtils.hasJvmNameAnnotation(descriptor) && requiresFunctionNameManglingForReturnType(descriptor)) {
+            if (!useOldManglingScheme) {
+                versionRequirementTable?.writeNewFunctionNameManglingRequirement(proto::addVersionRequirement)
+            }
             versionRequirementTable?.writeFunctionNameManglingForReturnTypeRequirement(proto::addVersionRequirement)
         }
     }

compiler/backend/src/org/jetbrains/kotlin/codegen/signature/KotlinToJvmSignatureMapperImpl.kt

@@ -17,7 +17,8 @@ class KotlinToJvmSignatureMapperImpl : KotlinToJvmSignatureMapper {
     private val typeMapper = KotlinTypeMapper(
         BindingContext.EMPTY, ClassBuilderMode.LIGHT_CLASSES,
         JvmProtoBufUtil.DEFAULT_MODULE_NAME,
-        KotlinTypeMapper.LANGUAGE_VERSION_SETTINGS_DEFAULT// TODO use proper LanguageVersionSettings
+        KotlinTypeMapper.LANGUAGE_VERSION_SETTINGS_DEFAULT,// TODO use proper LanguageVersionSettings
+        useOldInlineClassesManglingScheme = false
     )
 
     override fun mapToJvmMethodSignature(function: FunctionDescriptor) = typeMapper.mapAsmMethod(function)

compiler/backend/src/org/jetbrains/kotlin/codegen/state/BuilderFactoryForDuplicateSignatureDiagnostics.kt

@@ -50,12 +50,14 @@ class BuilderFactoryForDuplicateSignatureDiagnostics(
     private val diagnostics: DiagnosticSink,
     moduleName: String,
     languageVersionSettings: LanguageVersionSettings,
+    useOldInlineClassesManglingScheme: Boolean,
     shouldGenerate: (JvmDeclarationOrigin) -> Boolean,
 ) : SignatureCollectingClassBuilderFactory(builderFactory, shouldGenerate) {
 
     private val mapAsmMethod: (FunctionDescriptor) -> Method = KotlinTypeMapper(
         // Avoid errors when some classes are not loaded for some reason
-        bindingContext, ClassBuilderMode.LIGHT_CLASSES, moduleName, languageVersionSettings, isIrBackend = false
+        bindingContext, ClassBuilderMode.LIGHT_CLASSES, moduleName, languageVersionSettings, isIrBackend = false,
+        useOldInlineClassesManglingScheme = useOldInlineClassesManglingScheme
     )::mapAsmMethod
 
     private val reportDiagnosticsTasks = ArrayList<() -> Unit>()

compiler/backend/src/org/jetbrains/kotlin/codegen/state/GenerationState.kt

@@ -39,6 +39,7 @@ import org.jetbrains.kotlin.resolve.*
 import org.jetbrains.kotlin.resolve.deprecation.CoroutineCompatibilitySupport
 import org.jetbrains.kotlin.resolve.deprecation.DeprecationResolver
 import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics
+import org.jetbrains.kotlin.resolve.diagnostics.PrecomputedSuppressCache
 import org.jetbrains.kotlin.resolve.jvm.JvmClassName
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOriginKind.*
@@ -178,7 +179,11 @@ class GenerationState private constructor(
     }
 
     val extraJvmDiagnosticsTrace: BindingTrace =
-        DelegatingBindingTrace(originalFrontendBindingContext, "For extra diagnostics in ${this::class.java}", false)
+        DelegatingBindingTrace(
+            originalFrontendBindingContext, "For extra diagnostics in ${this::class.java}", false,
+            customSuppressCache = if (isIrBackend) PrecomputedSuppressCache(originalFrontendBindingContext, files) else null,
+        )
+
     private val interceptedBuilderFactory: ClassBuilderFactory
     private var used = false
 
@@ -190,6 +195,10 @@ class GenerationState private constructor(
 
     val languageVersionSettings = configuration.languageVersionSettings
 
+    val useOldManglingSchemeForFunctionsWithInlineClassesInSignatures =
+        configuration.getBoolean(JVMConfigurationKeys.USE_OLD_INLINE_CLASSES_MANGLING_SCHEME) ||
+                languageVersionSettings.languageVersion.run { major == 1 && minor < 4 }
+
     val target = configuration.get(JVMConfigurationKeys.JVM_TARGET) ?: JvmTarget.DEFAULT
     val runtimeStringConcat =
         if (target.bytecodeVersion >= JvmTarget.JVM_9.bytecodeVersion)
@@ -209,6 +218,7 @@ class GenerationState private constructor(
         classBuilderMode,
         this.moduleName,
         languageVersionSettings,
+        useOldManglingSchemeForFunctionsWithInlineClassesInSignatures,
         IncompatibleClassTrackerImpl(extraJvmDiagnosticsTrace),
         target,
         isIrBackend
@@ -313,6 +323,7 @@ class GenerationState private constructor(
                     else
                         BuilderFactoryForDuplicateSignatureDiagnostics(
                             it, bindingContext, diagnostics, this.moduleName, languageVersionSettings,
+                            useOldManglingSchemeForFunctionsWithInlineClassesInSignatures,
                             shouldGenerate = { origin -> !shouldOnlyCollectSignatures(origin) },
                         ).apply { duplicateSignatureFactory = this }
                 },

compiler/backend/src/org/jetbrains/kotlin/codegen/state/KotlinTypeMapper.kt

@@ -83,6 +83,7 @@ class KotlinTypeMapper @JvmOverloads constructor(
     val classBuilderMode: ClassBuilderMode,
     private val moduleName: String,
     val languageVersionSettings: LanguageVersionSettings,
+    private val useOldInlineClassesManglingScheme: Boolean,
     private val incompatibleClassTracker: IncompatibleClassTracker = IncompatibleClassTracker.DoNothing,
     val jvmTarget: JvmTarget = JvmTarget.DEFAULT,
     private val isIrBackend: Boolean = false,
@@ -91,6 +92,11 @@ class KotlinTypeMapper @JvmOverloads constructor(
 ) : KotlinTypeMapperBase() {
     private val isReleaseCoroutines = languageVersionSettings.supportsFeature(LanguageFeature.ReleaseCoroutines)
     val jvmDefaultMode = languageVersionSettings.getFlag(JvmAnalysisFlags.jvmDefaultMode)
+    var useOldManglingRulesForFunctionAcceptingInlineClass: Boolean = useOldInlineClassesManglingScheme
+        set(value) {
+            require(!useOldInlineClassesManglingScheme)
+            field = value
+        }
 
     private val typeMappingConfiguration = object : TypeMappingConfiguration<Type> {
         override fun commonSupertype(types: Collection<KotlinType>): KotlinType {
@@ -636,7 +642,11 @@ class KotlinTypeMapper @JvmOverloads constructor(
         // so that we don't have to repeat the same logic in reflection
         // in case of properties without getter methods.
         if (kind !== OwnerKind.PROPERTY_REFERENCE_SIGNATURE || descriptor.isPropertyWithGetterSignaturePresent()) {
-            val suffix = getManglingSuffixBasedOnKotlinSignature(descriptor, shouldMangleByReturnType)
+            val suffix = getManglingSuffixBasedOnKotlinSignature(
+                descriptor,
+                shouldMangleByReturnType,
+                useOldManglingRulesForFunctionAcceptingInlineClass
+            )
             if (suffix != null) {
                 newName += suffix
             } else if (kind === OwnerKind.ERASED_INLINE_CLASS) {

compiler/backend/src/org/jetbrains/kotlin/codegen/state/inlineClassManglingUtils.kt

@@ -7,8 +7,11 @@ package org.jetbrains.kotlin.codegen.state
 
 import org.jetbrains.kotlin.codegen.coroutines.unwrapInitialDescriptorForSuspendFunction
 import org.jetbrains.kotlin.descriptors.*
+import org.jetbrains.kotlin.name.FqNameUnsafe
+import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.InlineClassDescriptorResolver
+import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameUnsafe
 import org.jetbrains.kotlin.resolve.jvm.requiresFunctionNameManglingForParameterTypes
 import org.jetbrains.kotlin.resolve.jvm.requiresFunctionNameManglingForReturnType
@@ -17,9 +20,68 @@ import org.jetbrains.kotlin.types.typeUtil.representativeUpperBound
 import java.security.MessageDigest
 import java.util.*
 
+const val NOT_INLINE_CLASS_PARAMETER_PLACEHOLDER = "_"
+
+class InfoForMangling(
+    val fqName: FqNameUnsafe,
+    val isInline: Boolean,
+    val isNullable: Boolean
+)
+
+fun collectFunctionSignatureForManglingSuffix(
+    useOldManglingRules: Boolean,
+    requiresFunctionNameManglingForParameterTypes: Boolean,
+    fqNamesForMangling: List<InfoForMangling?>,
+    returnTypeInfo: InfoForMangling?,
+): String? {
+    fun getSignatureElementForMangling(info: InfoForMangling?): String = buildString {
+        if (info == null) return ""
+        if (useOldManglingRules || info.isInline) {
+            append('L')
+            append(info.fqName)
+            if (info.isNullable) append('?')
+            append(';')
+        } else {
+            append(NOT_INLINE_CLASS_PARAMETER_PLACEHOLDER)
+        }
+    }
+
+    fun collectSignatureForMangling(): String =
+        fqNamesForMangling.joinToString(separator = if (useOldManglingRules) ", " else "") {
+            getSignatureElementForMangling(it)
+        }
+
+    if (useOldManglingRules) {
+        if (requiresFunctionNameManglingForParameterTypes) {
+            return collectSignatureForMangling()
+        }
+
+        // If a class member function returns inline class value, mangle its name.
+        // NB here function can be a suspend function JVM view with return type replaced with 'Any',
+        // should unwrap it and take original return type instead.
+        if (returnTypeInfo != null) {
+            return ":" + getSignatureElementForMangling(returnTypeInfo)
+        }
+    } else {
+        // If a function accepts inline class parameters, mangle its name.
+        if (requiresFunctionNameManglingForParameterTypes || returnTypeInfo != null) {
+            // If a class member function returns inline class value, mangle its name.
+            // NB here function can be a suspend function JVM view with return type replaced with 'Any',
+            // should unwrap it and take original return type instead.
+            val signature = collectSignatureForMangling() +
+                    if (returnTypeInfo != null)
+                        ":" + getSignatureElementForMangling(returnTypeInfo)
+                    else ""
+            return signature
+        }
+    }
+    return null
+}
+
 fun getManglingSuffixBasedOnKotlinSignature(
     descriptor: CallableMemberDescriptor,
-    shouldMangleByReturnType: Boolean
+    shouldMangleByReturnType: Boolean,
+    useOldManglingRules: Boolean
 ): String? {
     if (descriptor !is FunctionDescriptor) return null
     if (descriptor is ConstructorDescriptor) return null
@@ -29,41 +91,33 @@ fun getManglingSuffixBasedOnKotlinSignature(
     // Some stdlib functions ('Result.success', 'Result.failure') are annotated with '@JvmName' as a workaround for forward compatibility.
     if (DescriptorUtils.hasJvmNameAnnotation(descriptor)) return null
 
-    // If a function accepts inline class parameters, mangle its name.
-    if (requiresFunctionNameManglingForParameterTypes(descriptor)) {
-        return "-" + md5base64(collectSignatureForMangling(descriptor))
-    }
+    val unwrappedDescriptor = descriptor.unwrapInitialDescriptorForSuspendFunction()
 
-    // If a class member function returns inline class value, mangle its name.
-    // NB here function can be a suspend function JVM view with return type replaced with 'Any',
-    // should unwrap it and take original return type instead.
-    if (shouldMangleByReturnType) {
-        val unwrappedDescriptor = descriptor.unwrapInitialDescriptorForSuspendFunction()
-        if (requiresFunctionNameManglingForReturnType(unwrappedDescriptor)) {
-            return "-" + md5base64(":" + getSignatureElementForMangling(unwrappedDescriptor.returnType!!))
-        }
-    }
-    return null
+    val resultNew = collectFunctionSignatureForManglingSuffix(
+        useOldManglingRules = useOldManglingRules,
+        requiresFunctionNameManglingForParameterTypes = requiresFunctionNameManglingForParameterTypes(descriptor),
+        fqNamesForMangling =
+        (listOfNotNull(descriptor.extensionReceiverParameter?.type) + descriptor.valueParameters.map { it.type })
+            .map { getInfoForMangling(it) },
+        returnTypeInfo =
+        if (shouldMangleByReturnType && requiresFunctionNameManglingForReturnType(unwrappedDescriptor))
+            getInfoForMangling(unwrappedDescriptor.returnType!!)
+        else null
+    )
+
+    return resultNew?.let { "-" + md5base64(it) }
 }
 
-private fun collectSignatureForMangling(descriptor: CallableMemberDescriptor): String {
-    val types = listOfNotNull(descriptor.extensionReceiverParameter?.type) + descriptor.valueParameters.map { it.type }
-    return types.joinToString { getSignatureElementForMangling(it) }
-}
-
-private fun getSignatureElementForMangling(type: KotlinType): String = buildString {
-    val descriptor = type.constructor.declarationDescriptor ?: return ""
-    when (descriptor) {
-        is ClassDescriptor -> {
-            append('L')
-            append(descriptor.fqNameUnsafe)
-            if (type.isMarkedNullable) append('?')
-            append(';')
-        }
+private fun getInfoForMangling(type: KotlinType): InfoForMangling? {
+    val descriptor = type.constructor.declarationDescriptor ?: return null
+    return when (descriptor) {
+        is ClassDescriptor -> InfoForMangling(descriptor.fqNameUnsafe, descriptor.isInline, type.isMarkedNullable)
 
         is TypeParameterDescriptor -> {
-            append(getSignatureElementForMangling(descriptor.representativeUpperBound))
+            getInfoForMangling(descriptor.representativeUpperBound)
         }
+
+        else -> null
     }
 }
 

compiler/build.gradle.kts

@@ -57,14 +57,9 @@ dependencies {
         testCompileOnly(project(it))
     }
     testCompileOnly(intellijCoreDep()) { includeJars("intellij-core") }
-    Platform[193].orLower {
-        testCompileOnly(intellijDep()) { includeJars("openapi", rootProject = rootProject) }
-    }
     testCompileOnly(intellijDep()) { includeJars("idea", "idea_rt", "util", "asm-all", rootProject = rootProject) }
 
-    Platform[192].orHigher {
-        testRuntimeOnly(intellijPluginDep("java"))
-    }
+    testRuntimeOnly(intellijPluginDep("java"))
 
     testRuntime(project(":kotlin-reflect"))
     testRuntime(androidDxJar())

compiler/cli/cli-common/resources/META-INF/extensions/compiler.xml

@@ -71,5 +71,7 @@
                         interface="org.jetbrains.kotlin.fir.extensions.FirExtensionRegistrar"/>
         <extensionPoint qualifiedName="org.jetbrains.kotlin.DescriptorSerializerPlugin"
                         interface="org.jetbrains.kotlin.serialization.DescriptorSerializerPlugin"/>
+        <extensionPoint qualifiedName="org.jetbrains.kotlin.defaultErrorMessages"
+                        interface="org.jetbrains.kotlin.diagnostics.rendering.DefaultErrorMessages.Extension"/>
     </extensionPoints>
 </idea-plugin>

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt

@@ -352,12 +352,6 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
     )
     var explicitApi: String by FreezableVar(ExplicitApiMode.DISABLED.state)
 
-    @Argument(
-        value = "-Xdeserialize-fake-overrides",
-        description = "Fallback to deserializing fake overrides"
-    )
-    var deserializeFakeOverrides: Boolean by FreezableVar(false)
-
     @Argument(
         value = "-Xinference-compatibility",
         description = "Enable compatibility changes for generic type inference algorithm"

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt

@@ -125,6 +125,9 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
     @Argument(value = "-Xir-dce-print-reachability-info", description = "Print declarations' reachability info to stdout during performing DCE")
     var irDcePrintReachabilityInfo: Boolean by FreezableVar(false)
 
+    @Argument(value = "-Xir-property-lazy-initialization", description = "Perform lazy initialization for properties")
+    var irPropertyLazyInitialization: Boolean by FreezableVar(false)
+
     @Argument(value = "-Xir-only", description = "Disables pre-IR backend")
     var irOnly: Boolean by FreezableVar(false)
 
@@ -172,12 +175,15 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
     @Argument(value = "-Xenable-js-scripting", description = "Enable experimental support of .kts files using K/JS (with -Xir only)")
     var enableJsScripting: Boolean by FreezableVar(false)
 
-    @Argument(value = "-Xdisable-fake-override-validator", description = "Disable IR fake override validator")
-    var disableFakeOverrideValidator: Boolean by FreezableVar(false)
+    @Argument(value = "-Xfake-override-validator", description = "Enable IR fake override validator")
+    var fakeOverrideValidator: Boolean by FreezableVar(false)
 
     @Argument(value = "-Xerror-tolerance-policy", description = "Set up error tolerance policy (NONE, SEMANTIC, SYNTAX, ALL)")
     var errorTolerancePolicy: String? by NullableStringFreezableVar(null)
 
+    @Argument(value = "-Xwasm", description = "Use experimental WebAssembly compiler backend")
+    var wasm: Boolean by FreezableVar(false)
+
     override fun checkIrSupport(languageVersionSettings: LanguageVersionSettings, collector: MessageCollector) {
         if (!isIrBackendEnabled()) return
 
@@ -196,4 +202,4 @@ fun K2JSCompilerArguments.isPreIrBackendDisabled(): Boolean =
     irOnly || irProduceJs || irProduceKlibFile
 
 fun K2JSCompilerArguments.isIrBackendEnabled(): Boolean =
-    irProduceKlibDir || irProduceJs || irProduceKlibFile
+    irProduceKlibDir || irProduceJs || irProduceKlibFile || wasm

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt

@@ -377,6 +377,12 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
     )
     var noKotlinNothingValueException: Boolean by FreezableVar(false)
 
+    @Argument(
+        value = "-Xno-reset-jar-timestamps",
+        description = "Do not reset jar entry timestamps to a fixed date"
+    )
+    var noResetJarTimestamps: Boolean by FreezableVar(false)
+
     @Argument(
         value = "-Xno-unified-null-checks",
         description = "Use pre-1.4 exception types in null checks instead of java.lang.NPE. See KT-22275 for more details"
@@ -406,6 +412,12 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
     )
     var useOldSpilledVarTypeAnalysis: Boolean by FreezableVar(false)
 
+    @Argument(
+        value = "-Xuse-14-inline-classes-mangling-scheme",
+        description = "Use 1.4 inline classes mangling scheme instead of 1.4.30 one"
+    )
+    var useOldInlineClassesManglingScheme: Boolean by FreezableVar(false)
+
     override fun configureAnalysisFlags(collector: MessageCollector): MutableMap<AnalysisFlag<*>, Any> {
         val result = super.configureAnalysisFlags(collector)
         result[JvmAnalysisFlags.strictMetadataVersionSemantics] = strictMetadataVersionSemantics

compiler/cli/cli-js/build.gradle.kts

@@ -12,6 +12,7 @@ dependencies {
     compile(project(":compiler:ir.backend.common"))
     compile(project(":compiler:ir.serialization.js"))
     compile(project(":compiler:backend.js"))
+    compile(project(":compiler:backend.wasm"))
     compile(project(":js:js.translator"))
     compile(project(":js:js.serializer"))
     compile(project(":js:js.dce"))

compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt

@@ -8,7 +8,10 @@ package org.jetbrains.kotlin.cli.js
 import com.intellij.openapi.Disposable
 import com.intellij.openapi.util.io.FileUtil
 import com.intellij.openapi.util.text.StringUtil
+import org.jetbrains.kotlin.backend.common.phaser.PhaseConfig
 import org.jetbrains.kotlin.backend.common.serialization.metadata.KlibMetadataVersion
+import org.jetbrains.kotlin.backend.wasm.compileWasm
+import org.jetbrains.kotlin.backend.wasm.wasmPhases
 import org.jetbrains.kotlin.cli.common.*
 import org.jetbrains.kotlin.cli.common.ExitCode.COMPILATION_ERROR
 import org.jetbrains.kotlin.cli.common.ExitCode.OK
@@ -24,7 +27,10 @@ import org.jetbrains.kotlin.cli.common.messages.MessageUtil
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.cli.jvm.plugins.PluginCliParser
-import org.jetbrains.kotlin.config.*
+import org.jetbrains.kotlin.config.CommonConfigurationKeys
+import org.jetbrains.kotlin.config.CompilerConfiguration
+import org.jetbrains.kotlin.config.IncrementalCompilation
+import org.jetbrains.kotlin.config.Services
 import org.jetbrains.kotlin.incremental.components.ExpectActualTracker
 import org.jetbrains.kotlin.incremental.components.LookupTracker
 import org.jetbrains.kotlin.incremental.js.IncrementalDataProvider
@@ -34,6 +40,7 @@ import org.jetbrains.kotlin.ir.backend.js.*
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrFactory
 import org.jetbrains.kotlin.js.config.*
 import org.jetbrains.kotlin.metadata.deserialization.BinaryVersion
+import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.serialization.js.ModuleKind
 import org.jetbrains.kotlin.util.Logger
@@ -216,6 +223,33 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                 MainModule.SourceFiles(sourcesFiles)
             }
 
+            if (arguments.wasm) {
+                val res = compileWasm(
+                    projectJs,
+                    mainModule,
+                    AnalyzerWithCompilerReport(config.configuration),
+                    config.configuration,
+                    PhaseConfig(wasmPhases),
+                    allDependencies = resolvedLibraries,
+                    friendDependencies = friendDependencies,
+                    exportedDeclarations = setOf(FqName("main"))
+                )
+                val outputWasmFile = outputFile.withReplacedExtensionOrNull(outputFile.extension, "wasm")!!
+                outputWasmFile.writeBytes(res.wasm)
+                val outputWatFile = outputFile.withReplacedExtensionOrNull(outputFile.extension, "wat")!!
+                outputWatFile.writeText(res.wat)
+
+                val runner = """
+                    const wasmBinary = read(String.raw`${outputWasmFile.absoluteFile}`, 'binary');
+                    const wasmModule = new WebAssembly.Module(wasmBinary);
+                    const wasmInstance = new WebAssembly.Instance(wasmModule, { runtime, js_code });
+                    wasmInstance.exports.main();
+                """.trimIndent()
+
+                outputFile.writeText(res.js + "\n" + runner)
+                return OK
+            }
+
             val compiledModule = try {
                 compile(
                     projectJs,
@@ -230,7 +264,8 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                     generateDceJs = arguments.irDce,
                     dceDriven = arguments.irDceDriven,
                     multiModule = arguments.irPerModule,
-                    relativeRequirePath = true
+                    relativeRequirePath = true,
+                    propertyLazyInitialization = arguments.irPropertyLazyInitialization,
                 )
             } catch (e: JsIrCompilationError) {
                 return COMPILATION_ERROR
@@ -333,7 +368,7 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
         }
 
         configuration.put(JSConfigurationKeys.PRINT_REACHABILITY_INFO, arguments.irDcePrintReachabilityInfo)
-        configuration.put(JSConfigurationKeys.DISABLE_FAKE_OVERRIDE_VALIDATOR, arguments.disableFakeOverrideValidator)
+        configuration.put(JSConfigurationKeys.FAKE_OVERRIDE_VALIDATOR, arguments.fakeOverrideValidator)
     }
 
     override fun executableScriptFileName(): String {

compiler/cli/src/org/jetbrains/kotlin/cli/common/arguments.kt

@@ -27,7 +27,6 @@ fun <A : CommonCompilerArguments> CompilerConfiguration.setupCommonArguments(
     put(CommonConfigurationKeys.EXPECT_ACTUAL_LINKER, arguments.expectActualLinker)
     putIfNotNull(CLIConfigurationKeys.INTELLIJ_PLUGIN_ROOT, arguments.intellijPluginRoot)
     put(CommonConfigurationKeys.REPORT_OUTPUT_FILES, arguments.reportOutputFiles)
-    put(CommonConfigurationKeys.DESERIALIZE_FAKE_OVERRIDES, arguments.deserializeFakeOverrides)
 
     val metadataVersionString = arguments.metadataVersion
     if (metadataVersionString != null) {

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/CliLightClassGenerationSupport.kt

@@ -87,6 +87,7 @@ class CliLightClassGenerationSupport(
                 ClassBuilderMode.LIGHT_CLASSES,
                 moduleName,
                 languageVersionSettings,
+                useOldInlineClassesManglingScheme = false,
                 jvmTarget = JvmTarget.JVM_1_8,
                 typePreprocessor = KotlinType::cleanFromAnonymousTypes,
                 namePreprocessor = ::tryGetPredefinedName

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/CompileEnvironmentUtil.java

@@ -31,11 +31,15 @@ import org.jetbrains.kotlin.utils.ExceptionUtilsKt;
 import org.jetbrains.kotlin.utils.PathUtil;
 
 import java.io.*;
+import java.util.*;
 import java.util.jar.*;
 
 import static org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity.ERROR;
 
 public class CompileEnvironmentUtil {
+
+    public static long DOS_EPOCH = new GregorianCalendar(1980, Calendar.JANUARY, 1, 0, 0, 0).getTimeInMillis();
+
     @NotNull
     public static ModuleChunk loadModuleChunk(File buildFile, MessageCollector messageCollector) {
         if (!buildFile.exists()) {
@@ -51,7 +55,11 @@ public class CompileEnvironmentUtil {
 
     // TODO: includeRuntime should be not a flag but a path to runtime
     private static void doWriteToJar(
-            OutputFileCollection outputFiles, OutputStream fos, @Nullable FqName mainClass, boolean includeRuntime
+            OutputFileCollection outputFiles,
+            OutputStream fos,
+            @Nullable FqName mainClass,
+            boolean includeRuntime,
+            boolean resetJarTimestamps
     ) {
         try {
             Manifest manifest = new Manifest();
@@ -61,13 +69,25 @@ public class CompileEnvironmentUtil {
             if (mainClass != null) {
                 mainAttributes.putValue("Main-Class", mainClass.asString());
             }
-            JarOutputStream stream = new JarOutputStream(fos, manifest);
+
+            JarOutputStream stream = new JarOutputStream(fos);
+            JarEntry manifestEntry = new JarEntry(JarFile.MANIFEST_NAME);
+            if (resetJarTimestamps) {
+                manifestEntry.setTime(DOS_EPOCH);
+            }
+            stream.putNextEntry(manifestEntry);
+            manifest.write(new BufferedOutputStream(stream));
+
             for (OutputFile outputFile : outputFiles.asList()) {
-                stream.putNextEntry(new JarEntry(outputFile.getRelativePath()));
+                JarEntry entry = new JarEntry(outputFile.getRelativePath());
+                if (resetJarTimestamps) {
+                    entry.setTime(DOS_EPOCH);
+                }
+                stream.putNextEntry(entry);
                 stream.write(outputFile.asByteArray());
             }
             if (includeRuntime) {
-                writeRuntimeToJar(stream);
+                writeRuntimeToJar(stream, resetJarTimestamps);
             }
             stream.finish();
         }
@@ -76,11 +96,13 @@ public class CompileEnvironmentUtil {
         }
     }
 
-    public static void writeToJar(File jarPath, boolean jarRuntime, FqName mainClass, OutputFileCollection outputFiles) {
+    public static void writeToJar(
+            File jarPath, boolean jarRuntime, boolean resetJarTimestamps, FqName mainClass, OutputFileCollection outputFiles
+    ) {
         FileOutputStream outputStream = null;
         try {
             outputStream = new FileOutputStream(jarPath);
-            doWriteToJar(outputFiles, outputStream, mainClass, jarRuntime);
+            doWriteToJar(outputFiles, outputStream, mainClass, jarRuntime, resetJarTimestamps);
             outputStream.close();
         }
         catch (FileNotFoundException e) {
@@ -94,21 +116,24 @@ public class CompileEnvironmentUtil {
         }
     }
 
-    private static void writeRuntimeToJar(JarOutputStream stream) throws IOException {
+    private static void writeRuntimeToJar(JarOutputStream stream, boolean resetJarTimestamps) throws IOException {
         File stdlibPath = PathUtil.getKotlinPathsForCompiler().getStdlibPath();
         if (!stdlibPath.exists()) {
             throw new CompileEnvironmentException("Couldn't find kotlin-stdlib at " + stdlibPath);
         }
-        copyJarImpl(stream, stdlibPath);
+        copyJarImpl(stream, stdlibPath, resetJarTimestamps);
     }
 
-    private static void copyJarImpl(JarOutputStream stream, File jarPath) throws IOException {
+    private static void copyJarImpl(JarOutputStream stream, File jarPath, boolean resetJarTimestamps) throws IOException {
         try (JarInputStream jis = new JarInputStream(new FileInputStream(jarPath))) {
             while (true) {
                 JarEntry e = jis.getNextJarEntry();
                 if (e == null) {
                     break;
                 }
+                if (resetJarTimestamps) {
+                    e.setTime(DOS_EPOCH);
+                }
                 if (FileUtilRt.extensionEquals(e.getName(), "class")) {
                     stream.putNextEntry(e);
                     FileUtil.copy(jis, stream);

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreApplicationEnvironment.java.193

@@ -1,150 +0,0 @@
-/*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-package org.jetbrains.kotlin.cli.jvm.compiler;
-
-import com.intellij.codeInsight.ContainerProvider;
-import com.intellij.codeInsight.JavaContainerProvider;
-import com.intellij.codeInsight.folding.JavaCodeFoldingSettings;
-import com.intellij.codeInsight.folding.impl.JavaCodeFoldingSettingsBase;
-import com.intellij.codeInsight.folding.impl.JavaFoldingBuilderBase;
-import com.intellij.codeInsight.runner.JavaMainMethodProvider;
-import com.intellij.core.CoreApplicationEnvironment;
-import com.intellij.core.CoreJavaDirectoryService;
-import com.intellij.core.CorePsiPackageImplementationHelper;
-import com.intellij.ide.highlighter.ArchiveFileType;
-import com.intellij.ide.highlighter.JavaClassFileType;
-import com.intellij.ide.highlighter.JavaFileType;
-import com.intellij.lang.LanguageASTFactory;
-import com.intellij.lang.MetaLanguage;
-import com.intellij.lang.folding.LanguageFolding;
-import com.intellij.lang.java.JavaLanguage;
-import com.intellij.lang.java.JavaParserDefinition;
-import com.intellij.navigation.ItemPresentationProviders;
-import com.intellij.openapi.Disposable;
-import com.intellij.openapi.extensions.Extensions;
-import com.intellij.openapi.extensions.ExtensionsArea;
-import com.intellij.openapi.fileTypes.FileTypeExtensionPoint;
-import com.intellij.openapi.fileTypes.PlainTextFileType;
-import com.intellij.openapi.fileTypes.PlainTextLanguage;
-import com.intellij.openapi.fileTypes.PlainTextParserDefinition;
-import com.intellij.openapi.projectRoots.JavaVersionService;
-import com.intellij.openapi.vfs.VirtualFileSystem;
-import com.intellij.psi.*;
-import com.intellij.psi.augment.PsiAugmentProvider;
-import com.intellij.psi.augment.TypeAnnotationModifier;
-import com.intellij.psi.compiled.ClassFileDecompilers;
-import com.intellij.psi.impl.LanguageConstantExpressionEvaluator;
-import com.intellij.psi.impl.PsiExpressionEvaluator;
-import com.intellij.psi.impl.PsiSubstitutorFactoryImpl;
-import com.intellij.psi.impl.compiled.ClassFileStubBuilder;
-import com.intellij.psi.impl.file.PsiPackageImplementationHelper;
-import com.intellij.psi.impl.search.MethodSuperSearcher;
-import com.intellij.psi.impl.source.tree.JavaASTFactory;
-import com.intellij.psi.impl.source.tree.PlainTextASTFactory;
-import com.intellij.psi.meta.MetaDataContributor;
-import com.intellij.psi.presentation.java.*;
-import com.intellij.psi.search.searches.SuperMethodsSearch;
-import com.intellij.psi.stubs.BinaryFileStubBuilders;
-import com.intellij.util.QueryExecutor;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem;
-
-/**
- * adapted from com.intellij.core.JavaCoreApplicationEnvironment
- * TODO: initiate removal original from com.intellij.core since it seems that there are no usages left
- */
-public class KotlinCoreApplicationEnvironment extends CoreApplicationEnvironment {
-
-  public static KotlinCoreApplicationEnvironment create(@NotNull Disposable parentDisposable, boolean unitTestMode) {
-    return new KotlinCoreApplicationEnvironment(parentDisposable, unitTestMode);
-  }
-
-  private KotlinCoreApplicationEnvironment(@NotNull Disposable parentDisposable, boolean unitTestMode) {
-    super(parentDisposable, unitTestMode);
-
-    registerExtensionPoints();
-
-    registerExtensions();
-  }
-
-  private void registerExtensionPoints() {
-    ExtensionsArea area = Extensions.getRootArea();
-
-    CoreApplicationEnvironment.registerExtensionPoint(area, BinaryFileStubBuilders.EP_NAME, FileTypeExtensionPoint.class);
-    CoreApplicationEnvironment.registerExtensionPoint(area, FileContextProvider.EP_NAME, FileContextProvider.class);
-
-    CoreApplicationEnvironment.registerExtensionPoint(area, MetaDataContributor.EP_NAME, MetaDataContributor.class);
-    CoreApplicationEnvironment.registerExtensionPoint(area, PsiAugmentProvider.EP_NAME, PsiAugmentProvider.class);
-    CoreApplicationEnvironment.registerExtensionPoint(area, JavaMainMethodProvider.EP_NAME, JavaMainMethodProvider.class);
-
-    CoreApplicationEnvironment.registerExtensionPoint(area, ContainerProvider.EP_NAME, ContainerProvider.class);
-    CoreApplicationEnvironment.registerExtensionPoint(area, ClassFileDecompilers.EP_NAME, ClassFileDecompilers.Decompiler.class);
-
-    CoreApplicationEnvironment.registerExtensionPoint(area, TypeAnnotationModifier.EP_NAME, TypeAnnotationModifier.class);
-    CoreApplicationEnvironment.registerExtensionPoint(area, MetaLanguage.EP_NAME, MetaLanguage.class);
-
-    IdeaExtensionPoints.INSTANCE.registerVersionSpecificAppExtensionPoints(area);
-  }
-
-  private void registerExtensions() {
-    registerFileType(JavaClassFileType.INSTANCE, "class");
-    registerFileType(JavaFileType.INSTANCE, "java");
-    registerFileType(ArchiveFileType.INSTANCE, "jar;zip");
-    registerFileType(PlainTextFileType.INSTANCE, "txt;sh;bat;cmd;policy;log;cgi;MF;jad;jam;htaccess");
-
-    addExplicitExtension(LanguageASTFactory.INSTANCE, PlainTextLanguage.INSTANCE, new PlainTextASTFactory());
-    registerParserDefinition(new PlainTextParserDefinition());
-
-    addExplicitExtension(FileTypeFileViewProviders.INSTANCE, JavaClassFileType.INSTANCE, new ClassFileViewProviderFactory());
-    addExplicitExtension(BinaryFileStubBuilders.INSTANCE, JavaClassFileType.INSTANCE, new ClassFileStubBuilder());
-
-    addExplicitExtension(LanguageASTFactory.INSTANCE, JavaLanguage.INSTANCE, new JavaASTFactory());
-    registerParserDefinition(new JavaParserDefinition());
-    addExplicitExtension(LanguageConstantExpressionEvaluator.INSTANCE, JavaLanguage.INSTANCE, new PsiExpressionEvaluator());
-
-    addExtension(ContainerProvider.EP_NAME, new JavaContainerProvider());
-
-    myApplication.registerService(PsiPackageImplementationHelper.class, new CorePsiPackageImplementationHelper());
-    myApplication.registerService(PsiSubstitutorFactory.class, new PsiSubstitutorFactoryImpl());
-
-    myApplication.registerService(JavaDirectoryService.class, createJavaDirectoryService());
-    myApplication.registerService(JavaVersionService.class, new JavaVersionService());
-
-    addExplicitExtension(ItemPresentationProviders.INSTANCE, PsiPackage.class, new PackagePresentationProvider());
-    addExplicitExtension(ItemPresentationProviders.INSTANCE, PsiClass.class, new ClassPresentationProvider());
-    addExplicitExtension(ItemPresentationProviders.INSTANCE, PsiMethod.class, new MethodPresentationProvider());
-    addExplicitExtension(ItemPresentationProviders.INSTANCE, PsiField.class, new FieldPresentationProvider());
-    addExplicitExtension(ItemPresentationProviders.INSTANCE, PsiLocalVariable.class, new VariablePresentationProvider());
-    addExplicitExtension(ItemPresentationProviders.INSTANCE, PsiParameter.class, new VariablePresentationProvider());
-
-    registerApplicationService(JavaCodeFoldingSettings.class, new JavaCodeFoldingSettingsBase());
-    addExplicitExtension(LanguageFolding.INSTANCE, JavaLanguage.INSTANCE, new JavaFoldingBuilderBase() {
-      @Override
-      protected boolean shouldShowExplicitLambdaType(@NotNull PsiAnonymousClass anonymousClass, @NotNull PsiNewExpression expression) {
-        return false;
-      }
-
-      @Override
-      protected boolean isBelowRightMargin(@NotNull PsiFile file, int lineLength) {
-        return false;
-      }
-    });
-
-    registerApplicationExtensionPoint(SuperMethodsSearch.EP_NAME, QueryExecutor.class);
-    addExtension(SuperMethodsSearch.EP_NAME, new MethodSuperSearcher());
-  }
-
-  // overridden in upsource
-  protected CoreJavaDirectoryService createJavaDirectoryService() {
-    return new CoreJavaDirectoryService();
-  }
-
-  @Nullable
-  @Override
-  protected VirtualFileSystem createJrtFileSystem() {
-    return new CoreJrtFileSystem();
-  }
-}

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreEnvironment.kt

@@ -102,6 +102,7 @@ import org.jetbrains.kotlin.resolve.lazy.declarations.DeclarationProviderFactory
 import org.jetbrains.kotlin.serialization.DescriptorSerializerPlugin
 import org.jetbrains.kotlin.utils.PathUtil
 import java.io.File
+import java.nio.file.FileSystems
 import java.util.zip.ZipFile
 
 class KotlinCoreEnvironment private constructor(
@@ -536,7 +537,11 @@ class KotlinCoreEnvironment private constructor(
                                 "(cp:\n  ${(Thread.currentThread().contextClassLoader as? UrlClassLoader)?.urls?.joinToString("\n  ") { it.file }})"
                     )
 
-            registerExtensionPointAndExtensionsEx(pluginRoot, configFilePath, Extensions.getRootArea())
+            CoreApplicationEnvironment.registerExtensionPointAndExtensions(
+                FileSystems.getDefault().getPath(pluginRoot.path),
+                configFilePath,
+                Extensions.getRootArea()
+            )
         }
 
         @JvmStatic

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreEnvironment.kt.as42

@@ -106,6 +106,7 @@ import org.jetbrains.kotlin.resolve.lazy.declarations.DeclarationProviderFactory
 import org.jetbrains.kotlin.serialization.DescriptorSerializerPlugin
 import org.jetbrains.kotlin.utils.PathUtil
 import java.io.File
+import java.nio.file.FileSystems
 import java.util.zip.ZipFile
 
 class KotlinCoreEnvironment private constructor(
@@ -534,7 +535,11 @@ class KotlinCoreEnvironment private constructor(
                                 "(cp:\n  ${(Thread.currentThread().contextClassLoader as? UrlClassLoader)?.urls?.joinToString("\n  ") { it.file }})"
                     )
 
-            registerExtensionPointAndExtensionsEx(pluginRoot, configFilePath, Extensions.getRootArea())
+            CoreApplicationEnvironment.registerExtensionPointAndExtensions(
+                FileSystems.getDefault().getPath(pluginRoot.path),
+                configFilePath,
+                Extensions.getRootArea()
+            )
         }
 
         @JvmStatic

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinToJVMBytecodeCompiler.kt

@@ -25,12 +25,12 @@ import com.intellij.psi.search.DelegatingGlobalSearchScope
 import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.psi.search.ProjectScope
 import org.jetbrains.kotlin.analyzer.AnalysisResult
-import org.jetbrains.kotlin.analyzer.ModuleInfo
 import org.jetbrains.kotlin.asJava.FilteredJvmDiagnostics
 import org.jetbrains.kotlin.asJava.finder.JavaElementFinder
 import org.jetbrains.kotlin.backend.common.output.OutputFileCollection
 import org.jetbrains.kotlin.backend.common.output.SimpleOutputFileCollection
 import org.jetbrains.kotlin.backend.common.phaser.PhaseConfig
+import org.jetbrains.kotlin.backend.jvm.JvmGeneratorExtensions
 import org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory
 import org.jetbrains.kotlin.backend.jvm.jvmPhases
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
@@ -55,13 +55,13 @@ import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.diagnostics.*
 import org.jetbrains.kotlin.fir.FirPsiSourceElement
-import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.analysis.FirAnalyzerFacade
 import org.jetbrains.kotlin.fir.analysis.diagnostics.*
 import org.jetbrains.kotlin.fir.backend.jvm.FirJvmBackendClassResolver
 import org.jetbrains.kotlin.fir.backend.jvm.FirMetadataSerializer
 import org.jetbrains.kotlin.fir.checkers.registerExtendedCommonCheckers
 import org.jetbrains.kotlin.fir.java.FirProjectSessionProvider
+import org.jetbrains.kotlin.fir.session.FirJvmModuleInfo
 import org.jetbrains.kotlin.fir.session.FirSessionFactory
 import org.jetbrains.kotlin.ir.backend.jvm.jvmResolveLibraries
 import org.jetbrains.kotlin.javac.JavacWrapper
@@ -69,16 +69,11 @@ import org.jetbrains.kotlin.load.kotlin.ModuleVisibilityManager
 import org.jetbrains.kotlin.modules.Module
 import org.jetbrains.kotlin.modules.TargetId
 import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.platform.TargetPlatform
-import org.jetbrains.kotlin.platform.jvm.JvmPlatforms
 import org.jetbrains.kotlin.progress.ProgressIndicatorAndCompilationCanceledStatus
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.resolve.CompilerEnvironment
-import org.jetbrains.kotlin.resolve.PlatformDependentAnalyzerServices
 import org.jetbrains.kotlin.resolve.diagnostics.SimpleDiagnostics
 import org.jetbrains.kotlin.resolve.jvm.KotlinJavaPsiFacade
-import org.jetbrains.kotlin.resolve.jvm.platform.JvmPlatformAnalyzerServices
 import org.jetbrains.kotlin.resolve.lazy.declarations.FileBasedDeclarationProviderFactory
 import org.jetbrains.kotlin.utils.newLinkedHashMapWithExpectedSize
 import java.io.File
@@ -94,7 +89,8 @@ object KotlinToJVMBytecodeCompiler {
         val messageCollector = configuration.get(CLIConfigurationKeys.MESSAGE_COLLECTOR_KEY, MessageCollector.NONE)
         if (jarPath != null) {
             val includeRuntime = configuration.get(JVMConfigurationKeys.INCLUDE_RUNTIME, false)
-            CompileEnvironmentUtil.writeToJar(jarPath, includeRuntime, mainClassFqName, outputFiles)
+            val resetJarTimestamps = !configuration.get(JVMConfigurationKeys.NO_RESET_JAR_TIMESTAMPS, false)
+            CompileEnvironmentUtil.writeToJar(jarPath, includeRuntime, resetJarTimestamps, mainClassFqName, outputFiles)
             if (reportOutputFiles) {
                 val message = OutputMessageUtil.formatOutputMessage(outputFiles.asList().flatMap { it.sourceFiles }.distinct(), jarPath)
                 messageCollector.report(OUTPUT, message)
@@ -326,43 +322,26 @@ object KotlinToJVMBytecodeCompiler {
 
             val scope = GlobalSearchScope.filesScope(project, ktFiles.map { it.virtualFile })
                 .uniteWith(TopDownAnalyzerFacadeForJVM.AllJavaSourcesInProjectScope(project))
-            val provider = FirProjectSessionProvider(project)
+            val provider = FirProjectSessionProvider()
 
-            class FirJvmModuleInfo(override val name: Name) : ModuleInfo {
-                constructor(moduleName: String) : this(Name.identifier(moduleName))
+            val librariesModuleInfo = FirJvmModuleInfo.createForLibraries()
+            val librariesScope = ProjectScope.getLibrariesScope(project)
+            FirSessionFactory.createLibrarySession(
+                librariesModuleInfo, provider, librariesScope,
+                project, environment.createPackagePartProvider(librariesScope)
+            )
 
-                val dependencies: MutableList<ModuleInfo> = mutableListOf()
-
-                override val platform: TargetPlatform
-                    get() = JvmPlatforms.unspecifiedJvmPlatform
-
-                override val analyzerServices: PlatformDependentAnalyzerServices
-                    get() = JvmPlatformAnalyzerServices
-
-                override fun dependencies(): List<ModuleInfo> {
-                    return dependencies
-                }
-            }
-
-            val moduleInfo = FirJvmModuleInfo(module.getModuleName())
-            val session: FirSession = FirSessionFactory.createJavaModuleBasedSession(moduleInfo, provider, scope) {
+            val moduleInfo = FirJvmModuleInfo(module.getModuleName(), listOf(librariesModuleInfo))
+            val session = FirSessionFactory.createJavaModuleBasedSession(moduleInfo, provider, scope, project) {
                 if (extendedAnalysisMode) {
                     registerExtendedCommonCheckers()
                 }
-            }.also {
-                val dependenciesInfo = FirJvmModuleInfo(Name.special("<dependencies>"))
-                moduleInfo.dependencies.add(dependenciesInfo)
-                val librariesScope = ProjectScope.getLibrariesScope(project)
-                FirSessionFactory.createLibrarySession(
-                    dependenciesInfo, provider, librariesScope,
-                    project, environment.createPackagePartProvider(librariesScope)
-                )
             }
 
             val firAnalyzerFacade = FirAnalyzerFacade(session, moduleConfiguration.languageVersionSettings, ktFiles)
 
             firAnalyzerFacade.runResolution()
-            val firDiagnostics = firAnalyzerFacade.runCheckers()
+            val firDiagnostics = firAnalyzerFacade.runCheckers().values.flatten()
             AnalyzerWithCompilerReport.reportDiagnostics(
                 SimpleDiagnostics(
                     firDiagnostics.map { it.toRegularDiagnostic() }
@@ -378,7 +357,8 @@ object KotlinToJVMBytecodeCompiler {
             performanceManager?.notifyGenerationStarted()
 
             performanceManager?.notifyIRTranslationStarted()
-            val (moduleFragment, symbolTable, sourceManager, components) = firAnalyzerFacade.convertToIr()
+            val extensions = JvmGeneratorExtensions()
+            val (moduleFragment, symbolTable, sourceManager, components) = firAnalyzerFacade.convertToIr(extensions)
 
             performanceManager?.notifyIRTranslationFinished()
 
@@ -414,7 +394,7 @@ object KotlinToJVMBytecodeCompiler {
             performanceManager?.notifyIRGenerationStarted()
             generationState.beforeCompile()
             codegenFactory.generateModuleInFrontendIRMode(
-                generationState, moduleFragment, symbolTable, sourceManager
+                generationState, moduleFragment, symbolTable, sourceManager, extensions
             ) { context, irClass, _, serializationBindings, parent ->
                 FirMetadataSerializer(session, context, irClass, serializationBindings, parent)
             }

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/MockExternalAnnotationsManager.kt.193

@@ -1,61 +0,0 @@
-/*
- * Copyright 2010-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.cli.jvm.compiler
-
-import com.intellij.codeInsight.ExternalAnnotationsManager
-import com.intellij.openapi.vfs.VirtualFile
-import com.intellij.psi.*
-
-class MockExternalAnnotationsManager : ExternalAnnotationsManager() {
-    override fun chooseAnnotationsPlace(element: PsiElement): AnnotationPlace = AnnotationPlace.NOWHERE
-
-    override fun isExternalAnnotationWritable(listOwner: PsiModifierListOwner, annotationFQN: String): Boolean = false
-    override fun isExternalAnnotation(annotation: PsiAnnotation): Boolean = false
-
-    override fun findExternalAnnotationsFiles(listOwner: PsiModifierListOwner): List<PsiFile>? = null
-    override fun findExternalAnnotation(listOwner: PsiModifierListOwner, annotationFQN: String): PsiAnnotation? = null
-    override fun findExternalAnnotations(listOwner: PsiModifierListOwner): Array<out PsiAnnotation>? = null
-
-    override fun annotateExternally(
-        listOwner: PsiModifierListOwner,
-        annotationFQName: String,
-        fromFile: PsiFile,
-        value: Array<out PsiNameValuePair>?
-    ) {
-        throw UnsupportedOperationException("not implemented")
-    }
-
-    override fun deannotate(listOwner: PsiModifierListOwner, annotationFQN: String): Boolean {
-        throw UnsupportedOperationException("not implemented")
-    }
-
-    override fun editExternalAnnotation(
-        listOwner: PsiModifierListOwner,
-        annotationFQN: String,
-        value: Array<out PsiNameValuePair>?
-    ): Boolean {
-        throw UnsupportedOperationException("not implemented")
-    }
-
-    override fun hasAnnotationRootsForFile(file: VirtualFile): Boolean = false
-
-    override fun findDefaultConstructorExternalAnnotations(aClass: PsiClass, annotationFQN: String): List<PsiAnnotation> = emptyList()
-
-    override fun findDefaultConstructorExternalAnnotations(aClass: PsiClass): List<PsiAnnotation> = emptyList()
-
-    override fun findExternalAnnotations(listOwner: PsiModifierListOwner, annotationFQN: String): List<PsiAnnotation> = emptyList()
-}

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/compat.kt.193

@@ -1,9 +0,0 @@
-/*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.cli.jvm.compiler
-
-fun setupIdeaStandaloneExecution() {
-}

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/coreApplicationEnvironmentCompat.kt

@@ -1,18 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.cli.jvm.compiler
-
-import com.intellij.core.CoreApplicationEnvironment
-import com.intellij.openapi.extensions.ExtensionsArea
-import java.io.File
-import java.nio.file.FileSystems
-
-// FIX ME WHEN BUNCH 193 REMOVED
-fun registerExtensionPointAndExtensionsEx(pluginFile: File, fileName: String, area: ExtensionsArea) {
-    val pluginRoot = FileSystems.getDefault().getPath(pluginFile.path)
-    @Suppress("MissingRecentApi")
-    CoreApplicationEnvironment.registerExtensionPointAndExtensions(pluginRoot, fileName, area)
-}

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/coreApplicationEnvironmentCompat.kt.193

@@ -1,16 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.cli.jvm.compiler
-
-import com.intellij.core.CoreApplicationEnvironment
-import com.intellij.openapi.extensions.ExtensionsArea
-import java.io.File
-
-// FIX ME WHEN BUNCH 193 REMOVED
-fun registerExtensionPointAndExtensionsEx(pluginFile: File, fileName: String, area: ExtensionsArea) {
-    @Suppress("MissingRecentApi")
-    CoreApplicationEnvironment.registerExtensionPointAndExtensions(pluginFile, fileName, area)
-}

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/jvmArguments.kt

@@ -61,8 +61,8 @@ fun CompilerConfiguration.setupJvmSpecificArguments(arguments: K2JVMCompilerArgu
             }
         } else {
             messageCollector.report(
-                ERROR, "Unknown `string-concat` mode: ${arguments.jvmTarget}\n" +
-                        "Supported versions: ${JvmStringConcat.values().joinToString { it.name.toLowerCase() }}"
+                ERROR, "Unknown -Xstring-concat mode: ${arguments.jvmTarget}\n" +
+                        "Supported versions: ${JvmStringConcat.values().joinToString { it.description }}"
             )
         }
     }
@@ -185,6 +185,7 @@ fun CompilerConfiguration.configureAdvancedJvmOptions(arguments: K2JVMCompilerAr
     put(JVMConfigurationKeys.EMIT_JVM_TYPE_ANNOTATIONS, arguments.emitJvmTypeAnnotations)
     put(JVMConfigurationKeys.NO_OPTIMIZED_CALLABLE_REFERENCES, arguments.noOptimizedCallableReferences)
     put(JVMConfigurationKeys.NO_KOTLIN_NOTHING_VALUE_EXCEPTION, arguments.noKotlinNothingValueException)
+    put(JVMConfigurationKeys.NO_RESET_JAR_TIMESTAMPS, arguments.noResetJarTimestamps)
     put(JVMConfigurationKeys.NO_UNIFIED_NULL_CHECKS, arguments.noUnifiedNullChecks)
 
     if (!JVMConstructorCallNormalizationMode.isSupportedValue(arguments.constructorCallNormalizationMode)) {
@@ -230,6 +231,7 @@ fun CompilerConfiguration.configureAdvancedJvmOptions(arguments: K2JVMCompilerAr
     put(CLIConfigurationKeys.ALLOW_KOTLIN_PACKAGE, arguments.allowKotlinPackage)
     put(JVMConfigurationKeys.USE_SINGLE_MODULE, arguments.singleModule)
     put(JVMConfigurationKeys.USE_OLD_SPILLED_VAR_TYPE_ANALYSIS, arguments.useOldSpilledVarTypeAnalysis)
+    put(JVMConfigurationKeys.USE_OLD_INLINE_CLASSES_MANGLING_SCHEME, arguments.useOldInlineClassesManglingScheme)
 
     arguments.declarationsOutputPath?.let { put(JVMConfigurationKeys.DECLARATIONS_JSON_PATH, it) }
 }

compiler/config.jvm/src/org/jetbrains/kotlin/config/JVMConfigurationKeys.java

@@ -129,9 +129,15 @@ public class JVMConfigurationKeys {
     public static final CompilerConfigurationKey<Boolean> NO_KOTLIN_NOTHING_VALUE_EXCEPTION =
             CompilerConfigurationKey.create("Do not use KotlinNothingValueException available since 1.4");
 
+    public static final CompilerConfigurationKey<Boolean> NO_RESET_JAR_TIMESTAMPS =
+            CompilerConfigurationKey.create("Do not reset timestamps in jar entries");
+
     public static final CompilerConfigurationKey<Boolean> NO_UNIFIED_NULL_CHECKS =
             CompilerConfigurationKey.create("Use pre-1.4 exception types in null checks instead of java.lang.NPE");
 
     public static final CompilerConfigurationKey<Boolean> USE_OLD_SPILLED_VAR_TYPE_ANALYSIS =
             CompilerConfigurationKey.create("Use old, SourceInterpreter-based analysis for fields, used for spilled variables in coroutines");
+
+    public static final CompilerConfigurationKey<Boolean> USE_OLD_INLINE_CLASSES_MANGLING_SCHEME =
+            CompilerConfigurationKey.create("Use old, 1.4 version of inline classes mangling scheme");
 }

compiler/config/src/org/jetbrains/kotlin/config/CommonConfigurationKeys.kt

@@ -48,9 +48,6 @@ object CommonConfigurationKeys {
     @JvmField
     val EXPECT_ACTUAL_LINKER = CompilerConfigurationKey.create<Boolean>("Experimental expext/actual linker")
 
-    @JvmField
-    val DESERIALIZE_FAKE_OVERRIDES = CompilerConfigurationKey.create<Boolean>("Deserialize fake overrides")
-
     @JvmField
     val USE_FIR_EXTENDED_CHECKERS = CompilerConfigurationKey.create<Boolean>("fir extended checkers")
 }

compiler/daemon/daemon-client-new/src/org/jetbrains/kotlin/daemon/client/experimental/KotlinCompilerClient.kt

@@ -25,6 +25,7 @@ import java.io.File
 import java.io.Serializable
 import java.net.SocketException
 import java.nio.channels.ClosedChannelException
+import java.nio.file.Files
 import java.rmi.ConnectException
 import java.rmi.ConnectIOException
 import java.rmi.UnmarshalException
@@ -422,7 +423,7 @@ class KotlinCompilerClient : KotlinCompilerDaemonClient {
         report: (DaemonReportCategory, String) -> Unit
     ): Deferred<Pair<CompileServiceAsync?, DaemonJVMOptions>> = GlobalScope.async {
         registryDir.mkdirs()
-        val timestampMarker = createTempFile("kotlin-daemon-client-tsmarker", directory = registryDir)
+        val timestampMarker = Files.createTempFile(registryDir.toPath(), "kotlin-daemon-client-tsmarker", null).toFile()
         val aliveWithMetadata = try {
             walkDaemonsAsync(registryDir, compilerId, timestampMarker, report = report)
         } finally {

compiler/daemon/daemon-client/src/org/jetbrains/kotlin/daemon/client/KotlinCompilerClient.kt

@@ -26,6 +26,7 @@ import java.io.File
 import java.io.OutputStream
 import java.io.PrintStream
 import java.net.SocketException
+import java.nio.file.Files
 import java.rmi.ConnectException
 import java.rmi.ConnectIOException
 import java.rmi.UnmarshalException
@@ -347,7 +348,7 @@ object KotlinCompilerClient {
 
     private fun tryFindSuitableDaemonOrNewOpts(registryDir: File, compilerId: CompilerId, daemonJVMOptions: DaemonJVMOptions, report: (DaemonReportCategory, String) -> Unit): Pair<CompileService?, DaemonJVMOptions> {
         registryDir.mkdirs()
-        val timestampMarker = createTempFile("kotlin-daemon-client-tsmarker", directory = registryDir)
+        val timestampMarker = Files.createTempFile(registryDir.toPath(), "kotlin-daemon-client-tsmarker", null).toFile()
         val aliveWithMetadata = try {
             walkDaemons(registryDir, compilerId, timestampMarker, report = report).toList()
         }

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/ClientUtils.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.daemon.common
 
 import java.io.File
+import java.nio.file.Files
 import java.rmi.registry.LocateRegistry
 
 
@@ -106,7 +107,12 @@ private inline fun tryConnectToDaemon(port: Int, report: (DaemonReportCategory,
 private const val validFlagFileKeywordChars = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 
 fun makeAutodeletingFlagFile(keyword: String = "compiler-client", baseDir: File? = null): File {
-    val flagFile = File.createTempFile("kotlin-${keyword.filter { validFlagFileKeywordChars.contains(it.toLowerCase()) }}-", "-is-running", baseDir?.takeIf { it.isDirectory && it.exists() })
+    val prefix = "kotlin-${keyword.filter { validFlagFileKeywordChars.contains(it.toLowerCase()) }}-"
+    val flagFile = if (baseDir?.isDirectory == true)
+        Files.createTempFile(baseDir.toPath(), prefix, "-is-running").toFile()
+    else
+        Files.createTempFile(prefix, "-is-running").toFile()
+
     flagFile.deleteOnExit()
     return flagFile
 }

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/CompilationResults.kt

@@ -29,6 +29,7 @@ enum class CompilationResultCategory(val code: Int) {
     IC_COMPILE_ITERATION(0),
     BUILD_REPORT_LINES(1),
     VERBOSE_BUILD_REPORT_LINES(2),
+    BUILD_METRICS(3)
 }
 
 interface CompilationResultsAsync {

compiler/daemon/daemon-tests/test/org/jetbrains/kotlin/daemon/CompilerApiTest.kt

@@ -35,7 +35,10 @@ import java.io.ByteArrayOutputStream
 import java.io.File
 import java.io.PrintStream
 import java.net.URLClassLoader
+import java.nio.file.Path
+import kotlin.io.path.*
 
+@OptIn(ExperimentalPathApi::class)
 class CompilerApiTest : KotlinIntegrationTestBase() {
 
     private val compilerLibDir = getCompilerLib()
@@ -119,7 +122,7 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
                                               verbose = true,
                                               reportPerf = true)
 
-            val logFile = createTempFile("kotlin-daemon-test.", ".log")
+            val logFile: Path = createTempFile("kotlin-daemon-test.", ".log")
 
             val daemonJVMOptions = configureDaemonJVMOptions("D$COMPILE_DAEMON_LOG_PATH_PROPERTY=\"${logFile.loggerCompatiblePath}\"",
                                                              inheritMemoryLimits = false, inheritOtherJvmOptions = false, inheritAdditionalProperties = false)
@@ -137,7 +140,8 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
             }
             finally {
                 KotlinCompilerClient.shutdownCompileService(compilerId, daemonOptions)
-                logFile.delete()
+                runCatching { logFile.deleteIfExists() }
+                    .onFailure { e -> println("Failed to delete log file: $e") }
             }
         }
     }
@@ -158,7 +162,7 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
                                               verbose = true,
                                               reportPerf = true)
 
-            val logFile = createTempFile("kotlin-daemon-test.", ".log")
+            val logFile: Path = createTempFile("kotlin-daemon-test.", ".log")
 
             val daemonJVMOptions = configureDaemonJVMOptions("D$COMPILE_DAEMON_LOG_PATH_PROPERTY=\"${logFile.loggerCompatiblePath}\"",
                                                              inheritMemoryLimits = false, inheritOtherJvmOptions = false, inheritAdditionalProperties = false)
@@ -174,7 +178,8 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
             }
             finally {
                 KotlinCompilerClient.shutdownCompileService(compilerId, daemonOptions)
-                logFile.delete()
+                runCatching { logFile.deleteIfExists() }
+                    .onFailure { e -> println("Failed to delete log file: $e") }
             }
         }
     }

compiler/daemon/daemon-tests/test/org/jetbrains/kotlin/daemon/CompilerDaemonTest.kt

@@ -36,10 +36,13 @@ import java.lang.management.ManagementFactory
 import java.net.URL
 import java.net.URLClassLoader
 import java.nio.charset.Charset
+import java.nio.file.Path
 import java.rmi.server.UnicastRemoteObject
 import java.util.concurrent.CountDownLatch
 import java.util.concurrent.TimeUnit
 import kotlin.concurrent.thread
+import kotlin.io.path.ExperimentalPathApi
+import kotlin.io.path.invariantSeparatorsPath
 import kotlin.script.dependencies.Environment
 import kotlin.script.dependencies.ScriptContents
 import kotlin.script.experimental.dependencies.DependenciesResolver
@@ -997,9 +1000,12 @@ internal inline fun withLogFile(prefix: String, suffix: String = ".log", printLo
 // if file path is given in windows form (using backslash as a separator); the reason is unknown
 // this function makes a path with forward slashed, that works on windows too
 internal val File.loggerCompatiblePath: String
-    get() =
-        if (OSKind.current == OSKind.Windows) absolutePath.replace('\\', '/')
-        else absolutePath
+    get() = invariantSeparatorsPath
+
+@OptIn(ExperimentalPathApi::class)
+internal val Path.loggerCompatiblePath: String
+    get() = invariantSeparatorsPath
+
 
 open class TestKotlinScriptDummyDependenciesResolver : DependenciesResolver {
 

compiler/daemon/daemon-tests/test/org/jetbrains/kotlin/daemon/experimental/integration/CompilerApiTest.kt

@@ -28,13 +28,16 @@ import org.junit.Assert
 import org.junit.runner.RunWith
 import java.io.File
 import java.net.URLClassLoader
+import java.nio.file.Path
 import java.util.logging.LogManager
 import java.util.logging.Logger
+import kotlin.io.path.*
 
 private val logFiles = arrayListOf<String>()
 
 // TODO: remove ignore annotation from tests.
 
+@OptIn(ExperimentalPathApi::class)
 @RunWith(IgnoreAll::class)
 class CompilerApiTest : KotlinIntegrationTestBase() {
 
@@ -43,7 +46,7 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
 
     private val compilerLibDir = getCompilerLib()
 
-    private fun createNewLogFile(): File {
+    private fun createNewLogFile(): Path {
         println("creating logFile")
         val newLogFile = createTempFile("kotlin-daemon-experimental-test.", ".log")
         println("logFile created (${newLogFile.loggerCompatiblePath})")
@@ -51,7 +54,7 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
         return newLogFile
     }
 
-    private val currentLogFile: File by lazy {
+    private val currentLogFile: Path by lazy {
         val newLogFile = createNewLogFile()
         val cfg: String =
             "handlers = java.util.logging.FileHandler\n" +
@@ -67,7 +70,7 @@ class CompilerApiTest : KotlinIntegrationTestBase() {
         newLogFile
     }
 
-    private val externalLogFile: File by lazy { createNewLogFile() }
+    private val externalLogFile: Path by lazy { createNewLogFile() }
 
     private val log by lazy {
         currentLogFile

compiler/daemon/daemon-tests/test/org/jetbrains/kotlin/daemon/experimental/integration/CompilerDaemonTest.kt

@@ -3,6 +3,8 @@
  * that can be found in the license/LICENSE.txt file.
  */
 
+@file:OptIn(ExperimentalPathApi::class)
+
 package org.jetbrains.kotlin.daemon.experimental.integration
 
 import junit.framework.TestCase
@@ -38,6 +40,7 @@ import java.net.URL
 import java.net.URLClassLoader
 import java.nio.channels.ClosedChannelException
 import java.nio.charset.Charset
+import java.nio.file.Path
 import java.rmi.ConnectException
 import java.rmi.ConnectIOException
 import java.rmi.UnmarshalException
@@ -46,6 +49,7 @@ import java.util.concurrent.CountDownLatch
 import java.util.concurrent.TimeUnit
 import java.util.logging.LogManager
 import kotlin.concurrent.thread
+import kotlin.io.path.*
 import kotlin.script.dependencies.Environment
 import kotlin.script.dependencies.ScriptContents
 import kotlin.script.experimental.dependencies.DependenciesResolver
@@ -64,7 +68,7 @@ class CompilerDaemonTest : KotlinIntegrationTestBase() {
 
     val kotlinCompilerClientInstance = KotlinCompilerDaemonClient.instantiate(DaemonProtocolVariant.SOCKETS)
 
-    private fun createNewLogFile(): File {
+    private fun createNewLogFile(): Path {
         println("creating logFile")
         val newLogFile = createTempFile("kotlin-daemon-experimental-test.", ".log")
         println("logFile created (${newLogFile.loggerCompatiblePath})")
@@ -595,8 +599,8 @@ class CompilerDaemonTest : KotlinIntegrationTestBase() {
                 shutdownDelayMilliseconds = 1,
                 runFilesPath = File(tmpdir, getTestName(true)).absolutePath
             )
-            val clientFlag = createTempFile(getTestName(true), "-client.alive")
-            val sessionFlag = createTempFile(getTestName(true), "-session.alive")
+            val clientFlag = createTempFile(getTestName(true), "-client.alive").toFile()
+            val sessionFlag = createTempFile(getTestName(true), "-session.alive").toFile()
             try {
                 withLogFile("kotlin-daemon-test") { logFile ->
                     val daemonJVMOptions = makeTestDaemonJvmOptions(logFile)
@@ -635,8 +639,8 @@ class CompilerDaemonTest : KotlinIntegrationTestBase() {
                 shutdownDelayMilliseconds = 1,
                 runFilesPath = File(tmpdir, getTestName(true)).absolutePath
             )
-            val clientFlag = createTempFile(getTestName(true), "-client.alive")
-            val sessionFlag = createTempFile(getTestName(true), "-session.alive")
+            val clientFlag = createTempFile(getTestName(true), "-client.alive").toFile()
+            val sessionFlag = createTempFile(getTestName(true), "-session.alive").toFile()
             try {
                 withLogFile("kotlin-daemon-test") { logFile ->
                     val daemonJVMOptions = makeTestDaemonJvmOptions(logFile)
@@ -678,8 +682,8 @@ class CompilerDaemonTest : KotlinIntegrationTestBase() {
                 shutdownDelayMilliseconds = 3000,
                 runFilesPath = File(tmpdir, getTestName(true)).absolutePath
             )
-            val clientFlag = createTempFile(getTestName(true), "-client.alive")
-            val clientFlag2 = createTempFile(getTestName(true), "-client.alive")
+            val clientFlag = createTempFile(getTestName(true), "-client.alive").toFile()
+            val clientFlag2 = createTempFile(getTestName(true), "-client.alive").toFile()
             try {
                 withLogFile("kotlin-daemon-test") { logFile ->
                     val daemonJVMOptions = makeTestDaemonJvmOptions(logFile)
@@ -769,8 +773,7 @@ class CompilerDaemonTest : KotlinIntegrationTestBase() {
             assertEquals("Compilation failed:\n$resOutput", 0, resCode)
             println("OK")
         } finally {
-            if (clientAliveFile.exists())
-                clientAliveFile.delete()
+            clientAliveFile.deleteIfExists()
         }
     }
 
@@ -1427,7 +1430,7 @@ fun restoreSystemProperty(propertyName: String, backupValue: String?) {
 }
 
 internal inline fun withFlagFile(prefix: String, suffix: String? = null, body: (File) -> Unit) {
-    val file = createTempFile(prefix, suffix)
+    val file = createTempFile(prefix, suffix).toFile()
     try {
         body(file)
     } finally {
@@ -1436,7 +1439,7 @@ internal inline fun withFlagFile(prefix: String, suffix: String? = null, body: (
 }
 
 internal inline fun withLogFile(prefix: String, suffix: String = ".log", printLogOnException: Boolean = true, body: (File) -> Unit) {
-    val logFile = createTempFile(prefix, suffix)
+    val logFile = createTempFile(prefix, suffix).toFile()
     println("LOG FILE : ${logFile.path}")
     try {
         body(logFile)
@@ -1449,13 +1452,6 @@ internal inline fun withLogFile(prefix: String, suffix: String = ".log", printLo
     }
 }
 
-// java.util.Logger used in the daemon silently forgets to log into a file specified in the config on Windows,
-// if file path is given in windows form (using backslash as a separator); the reason is unknown
-// this function makes a path with forward slashed, that works on windows too
-internal val File.loggerCompatiblePath: String
-    get() =
-        if (OSKind.current == OSKind.Windows) absolutePath.replace('\\', '/')
-        else absolutePath
 
 open class TestKotlinScriptDummyDependenciesResolver : DependenciesResolver {
 

compiler/daemon/daemon-tests/test/org/jetbrains/kotlin/daemon/experimental/unit/ClientSerializationTest.kt

@@ -24,6 +24,7 @@ import java.io.ObjectInputStream
 import java.io.ObjectOutputStream
 import java.net.InetSocketAddress
 import java.util.logging.Logger
+import kotlin.io.path.*
 
 @OptIn(KtorExperimentalAPI::class)
 class TestServer(val serverPort: Int = 6999) {
@@ -44,6 +45,7 @@ val testServer = TestServer()
 
 @RunWith(IgnoreAll::class)
 @Suppress("UNCHECKED_CAST")
+@OptIn(ExperimentalPathApi::class)
 class ClientSerializationTest : KotlinIntegrationTestBase() {
 
     val file = createTempFile()

compiler/daemon/daemon-tests/test/org/jetbrains/kotlin/daemon/experimental/unit/ConnectionsTest.kt

@@ -31,11 +31,14 @@ import java.io.ByteArrayOutputStream
 import java.io.File
 import java.io.IOException
 import java.io.PrintStream
+import java.nio.file.Path
 import java.util.*
 import java.util.logging.LogManager
 import java.util.logging.Logger
 import kotlin.concurrent.schedule
+import kotlin.io.path.*
 
+@OptIn(ExperimentalPathApi::class)
 @RunWith(IgnoreAll::class)
 class ConnectionsTest : KotlinIntegrationTestBase() {
 
@@ -247,15 +250,15 @@ class ConnectionsTest : KotlinIntegrationTestBase() {
         extraAction
     )
 
-    private val clientFiles = arrayListOf<File>()
+    private val clientFiles = mutableListOf<Path>()
     private fun generateClient(): String {
         val file = createTempFile(getTestName(true), ".alive")
         clientFiles.add(file)
-        return file.absolutePath
+        return file.toAbsolutePath().toString()
     }
 
     private fun deleteClients() {
-        clientFiles.forEach { it.delete() }
+        clientFiles.forEach { it.deleteIfExists() }
     }
 
     private fun endTest() {

compiler/daemon/src/org/jetbrains/kotlin/daemon/CompileServiceImpl.kt

@@ -21,6 +21,9 @@ import com.intellij.openapi.util.Disposer
 import com.intellij.openapi.vfs.impl.ZipHandler
 import com.intellij.openapi.vfs.impl.jar.CoreJarFileSystem
 import org.jetbrains.kotlin.build.DEFAULT_KOTLIN_SOURCE_FILES_EXTENSIONS
+import org.jetbrains.kotlin.build.report.BuildReporter
+import org.jetbrains.kotlin.build.report.RemoteBuildReporter
+import org.jetbrains.kotlin.build.report.RemoteReporter
 import org.jetbrains.kotlin.cli.common.CLICompiler
 import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.cli.common.KOTLIN_COMPILER_ENVIRONMENT_KEEPALIVE_PROPERTY
@@ -286,7 +289,7 @@ abstract class CompileServiceImplBase(
         createMessageCollector: (ServicesFacadeT, CompilationOptions) -> MessageCollector,
         createReporter: (ServicesFacadeT, CompilationOptions) -> DaemonMessageReporter,
         createServices: (JpsServicesFacadeT, EventManager, Profiler) -> Services,
-        getICReporter: (ServicesFacadeT, CompilationResultsT?, IncrementalCompilationOptions) -> RemoteICReporter
+        getICReporter: (ServicesFacadeT, CompilationResultsT?, IncrementalCompilationOptions) -> RemoteBuildReporter
     ) = kotlin.run {
         val messageCollector = createMessageCollector(servicesFacade, compilationOptions)
         val daemonReporter = createReporter(servicesFacade, compilationOptions)
@@ -514,7 +517,7 @@ abstract class CompileServiceImplBase(
         args: K2JSCompilerArguments,
         incrementalCompilationOptions: IncrementalCompilationOptions,
         compilerMessageCollector: MessageCollector,
-        reporter: RemoteICReporter
+        reporter: RemoteBuildReporter
     ): ExitCode {
         val allKotlinFiles = arrayListOf<File>()
         val freeArgsWithoutKotlinFiles = arrayListOf<String>()
@@ -554,7 +557,7 @@ abstract class CompileServiceImplBase(
         k2jvmArgs: K2JVMCompilerArguments,
         incrementalCompilationOptions: IncrementalCompilationOptions,
         compilerMessageCollector: MessageCollector,
-        reporter: RemoteICReporter
+        reporter: RemoteBuildReporter
     ): ExitCode {
         val allKotlinExtensions = (DEFAULT_KOTLIN_SOURCE_FILES_EXTENSIONS +
                 (incrementalCompilationOptions.kotlinScriptExtensions ?: emptyArray())).distinct()
@@ -784,7 +787,7 @@ class CompileServiceImpl(
         createMessageCollector = ::CompileServicesFacadeMessageCollector,
         createReporter = ::DaemonMessageReporter,
         createServices = this::createCompileServices,
-        getICReporter = { a, b, c -> getICReporter(a, b!!, c)}
+        getICReporter = { a, b, c -> getBuildReporter(a, b!!, c)}
     )
 
     override fun leaseReplSession(

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/BuildReportICReporter.kt

@@ -8,10 +8,12 @@ package org.jetbrains.kotlin.daemon.report
 import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.daemon.common.CompilationResultCategory
 import org.jetbrains.kotlin.daemon.common.CompilationResults
-import org.jetbrains.kotlin.incremental.ICReporterBase
+import org.jetbrains.kotlin.build.report.ICReporterBase
+import org.jetbrains.kotlin.build.report.RemoteICReporter
 import java.io.File
-import java.util.HashMap
+import java.util.*
 
+// todo: sync BuildReportICReporterAsync
 internal class BuildReportICReporter(
     private val compilationResults: CompilationResults,
     rootDir: File,

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/CompileIterationICReporter.kt

@@ -9,7 +9,8 @@ import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.daemon.common.CompilationResultCategory
 import org.jetbrains.kotlin.daemon.common.CompilationResults
 import org.jetbrains.kotlin.daemon.common.CompileIterationResult
-import org.jetbrains.kotlin.incremental.ICReporterBase
+import org.jetbrains.kotlin.build.report.ICReporterBase
+import org.jetbrains.kotlin.build.report.RemoteICReporter
 import java.io.File
 
 internal class CompileIterationICReporter(

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/CompositeICReporter.kt

@@ -5,11 +5,11 @@
 
 package org.jetbrains.kotlin.daemon.report
 
+import org.jetbrains.kotlin.build.report.RemoteICReporter
 import org.jetbrains.kotlin.cli.common.ExitCode
 import java.io.File
 
-internal class CompositeICReporter(private val reporters: Iterable<RemoteICReporter>) :
-    RemoteICReporter {
+internal class CompositeICReporter(private val reporters: Iterable<RemoteICReporter>) : RemoteICReporter {
     override fun report(message: () -> String) {
         reporters.forEach { it.report(message) }
     }

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/DebugMessagesICReporter.kt

@@ -7,7 +7,8 @@ package org.jetbrains.kotlin.daemon.report
 
 import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.daemon.common.*
-import org.jetbrains.kotlin.incremental.ICReporterBase
+import org.jetbrains.kotlin.build.report.ICReporterBase
+import org.jetbrains.kotlin.build.report.RemoteICReporter
 import java.io.File
 
 internal class DebugMessagesICReporter(

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/RemoteBuildMetricsReporterAdapter.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.daemon.report
+
+import org.jetbrains.kotlin.build.report.metrics.BuildMetricsReporter
+import org.jetbrains.kotlin.build.report.metrics.RemoteBuildMetricsReporter
+import org.jetbrains.kotlin.daemon.common.CompilationResultCategory
+import org.jetbrains.kotlin.daemon.common.CompilationResults
+
+class RemoteBuildMetricsReporterAdapter(
+    private val delegate: BuildMetricsReporter,
+    private val shouldReport: Boolean,
+    private val compilationResults: CompilationResults
+) :
+    BuildMetricsReporter by delegate,
+    RemoteBuildMetricsReporter {
+
+    override fun flush() {
+        if (shouldReport) {
+            val metrics = delegate.getMetrics()
+            compilationResults.add(CompilationResultCategory.BUILD_METRICS.code, metrics)
+        }
+    }
+}

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/RemoteICReporter.kt

@@ -1,12 +0,0 @@
-/*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.daemon.report
-
-import org.jetbrains.kotlin.incremental.ICReporter
-
-interface RemoteICReporter : ICReporter {
-    fun flush()
-}

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/experimental/RemoteICReporter.kt

@@ -5,25 +5,29 @@
 
 package org.jetbrains.kotlin.daemon.report.experimental
 
-import kotlinx.coroutines.*
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.async
+import org.jetbrains.kotlin.build.report.ICReporterBase
+import org.jetbrains.kotlin.build.report.RemoteBuildReporter
+import org.jetbrains.kotlin.build.report.RemoteICReporter
+import org.jetbrains.kotlin.build.report.metrics.BuildMetricsReporter
+import org.jetbrains.kotlin.build.report.metrics.DoNothingBuildMetricsReporter
+import org.jetbrains.kotlin.build.report.metrics.RemoteBuildMetricsReporter
 import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.daemon.common.*
-import org.jetbrains.kotlin.daemon.report.RemoteICReporter
-import org.jetbrains.kotlin.incremental.ICReporter
-import org.jetbrains.kotlin.incremental.ICReporterBase
+import org.jetbrains.kotlin.daemon.report.CompositeICReporter
 import java.io.File
-import java.io.Serializable
 
 internal class DebugMessagesICReporterAsync(
-        private val servicesFacade: CompilerServicesFacadeBaseAsync,
-        rootDir: File,
-        private val isVerbose: Boolean
+    private val servicesFacade: CompilerServicesFacadeBaseAsync,
+    rootDir: File,
+    private val isVerbose: Boolean
 ) : ICReporterBase(rootDir), RemoteICReporter {
     override fun report(message: () -> String) {
         GlobalScope.async {
             servicesFacade.report(
-                    ReportCategory.IC_MESSAGE,
-                    ReportSeverity.DEBUG, message()
+                ReportCategory.IC_MESSAGE,
+                ReportSeverity.DEBUG, message()
             )
         }
     }
@@ -42,13 +46,13 @@ internal class DebugMessagesICReporterAsync(
 }
 
 internal class CompileIterationICReporterAsync(
-        private val compilationResults: CompilationResultsAsync?
+    private val compilationResults: CompilationResultsAsync?
 ) : ICReporterBase(), RemoteICReporter {
     override fun reportCompileIteration(incremental: Boolean, sourceFiles: Collection<File>, exitCode: ExitCode) {
         GlobalScope.async {
             compilationResults?.add(
-                    CompilationResultCategory.IC_COMPILE_ITERATION.code,
-                    CompileIterationResult(sourceFiles, exitCode.toString())
+                CompilationResultCategory.IC_COMPILE_ITERATION.code,
+                CompileIterationResult(sourceFiles, exitCode.toString())
             )
         }
     }
@@ -64,9 +68,9 @@ internal class CompileIterationICReporterAsync(
 }
 
 internal class BuildReportICReporterAsync(
-        private val compilationResults: CompilationResultsAsync?,
-        rootDir: File,
-        private val isVerbose: Boolean = false
+    private val compilationResults: CompilationResultsAsync?,
+    rootDir: File,
+    private val isVerbose: Boolean = false
 ) : ICReporterBase(rootDir), RemoteICReporter {
     private val icLogLines = arrayListOf<String>()
     private val recompilationReason = HashMap<File, String>()
@@ -103,42 +107,11 @@ internal class BuildReportICReporterAsync(
     }
 }
 
-internal class CompositeICReporterAsync(private val reporters: Iterable<RemoteICReporter>) :
-    RemoteICReporter {
-    override fun report(message: () -> String) {
-        reporters.forEach { it.report(message) }
-    }
-
-    override fun reportVerbose(message: () -> String) {
-        reporters.forEach { it.reportVerbose(message) }
-    }
-
-    override fun reportCompileIteration(incremental: Boolean, sourceFiles: Collection<File>, exitCode: ExitCode) {
-        reporters.forEach { it.reportCompileIteration(incremental, sourceFiles, exitCode) }
-    }
-
-    override fun reportMarkDirtyClass(affectedFiles: Iterable<File>, classFqName: String) {
-        reporters.forEach { it.reportMarkDirtyClass(affectedFiles, classFqName) }
-    }
-
-    override fun reportMarkDirtyMember(affectedFiles: Iterable<File>, scope: String, name: String) {
-        reporters.forEach { it.reportMarkDirtyMember(affectedFiles, scope, name) }
-    }
-
-    override fun reportMarkDirty(affectedFiles: Iterable<File>, reason: String) {
-        reporters.forEach { it.reportMarkDirty(affectedFiles, reason) }
-    }
-
-    override fun flush() {
-        reporters.forEach { it.flush() }
-    }
-}
-
 fun getICReporterAsync(
-        servicesFacade: CompilerServicesFacadeBaseAsync,
-        compilationResults: CompilationResultsAsync?,
-        compilationOptions: IncrementalCompilationOptions
-): RemoteICReporter {
+    servicesFacade: CompilerServicesFacadeBaseAsync,
+    compilationResults: CompilationResultsAsync?,
+    compilationOptions: IncrementalCompilationOptions
+): RemoteBuildReporter {
     val root = compilationOptions.modulesInfo.projectRoot
     val reporters = ArrayList<RemoteICReporter>()
 
@@ -148,23 +121,32 @@ fun getICReporterAsync(
     }
 
     val requestedResults = compilationOptions
-            .requestedCompilationResults
-            .mapNotNullTo(HashSet()) { resultCode ->
-                CompilationResultCategory.values().getOrNull(resultCode)
-            }
-    requestedResults.mapTo(reporters) { requestedResult ->
+        .requestedCompilationResults
+        .mapNotNullTo(HashSet()) { resultCode ->
+            CompilationResultCategory.values().getOrNull(resultCode)
+        }
+    for (requestedResult in requestedResults) {
         when (requestedResult) {
             CompilationResultCategory.IC_COMPILE_ITERATION -> {
-                CompileIterationICReporterAsync(compilationResults)
+                reporters.add(CompileIterationICReporterAsync(compilationResults))
             }
             CompilationResultCategory.BUILD_REPORT_LINES -> {
-                BuildReportICReporterAsync(compilationResults, root)
+                reporters.add(BuildReportICReporterAsync(compilationResults, root))
             }
             CompilationResultCategory.VERBOSE_BUILD_REPORT_LINES -> {
-                BuildReportICReporterAsync(compilationResults, root, isVerbose = true)
+                reporters.add(BuildReportICReporterAsync(compilationResults, root, isVerbose = true))
+            }
+            CompilationResultCategory.BUILD_METRICS -> {
             }
         }
     }
 
-    return CompositeICReporterAsync(reporters)
-}
+    val icReporter = CompositeICReporter(reporters)
+    val metricsReporter = DoNothingRemoteBuildMetricsReporter
+    return RemoteBuildReporter(icReporter, metricsReporter)
+}
+
+object DoNothingRemoteBuildMetricsReporter : BuildMetricsReporter by DoNothingBuildMetricsReporter, RemoteBuildMetricsReporter {
+    override fun flush() {
+    }
+}

compiler/daemon/src/org/jetbrains/kotlin/daemon/report/getICReporter.kt

@@ -16,15 +16,18 @@
 
 package org.jetbrains.kotlin.daemon.report
 
+import org.jetbrains.kotlin.build.report.RemoteBuildReporter
+import org.jetbrains.kotlin.build.report.RemoteICReporter
+import org.jetbrains.kotlin.build.report.metrics.BuildMetricsReporterImpl
+import org.jetbrains.kotlin.build.report.metrics.DoNothingBuildMetricsReporter
 import org.jetbrains.kotlin.daemon.common.*
-import java.io.File
 import java.util.*
 
-fun getICReporter(
+fun getBuildReporter(
     servicesFacade: CompilerServicesFacadeBase,
     compilationResults: CompilationResults,
     compilationOptions: IncrementalCompilationOptions
-): RemoteICReporter {
+): RemoteBuildReporter {
     val root = compilationOptions.modulesInfo.projectRoot
     val reporters = ArrayList<RemoteICReporter>()
 
@@ -38,21 +41,25 @@ fun getICReporter(
         .mapNotNullTo(HashSet()) { resultCode ->
             CompilationResultCategory.values().getOrNull(resultCode)
         }
-    requestedResults.mapTo(reporters) { requestedResult ->
+    for (requestedResult in requestedResults) {
         when (requestedResult) {
             CompilationResultCategory.IC_COMPILE_ITERATION -> {
-                CompileIterationICReporter(compilationResults)
+                reporters.add(CompileIterationICReporter(compilationResults))
             }
             CompilationResultCategory.BUILD_REPORT_LINES -> {
-                BuildReportICReporter(compilationResults, root)
+                reporters.add(BuildReportICReporter(compilationResults, root))
             }
             CompilationResultCategory.VERBOSE_BUILD_REPORT_LINES -> {
-                BuildReportICReporter(compilationResults, root, isVerbose = true)
+                reporters.add(BuildReportICReporter(compilationResults, root, isVerbose = true))
+            }
+            CompilationResultCategory.BUILD_METRICS -> {
             }
         }
     }
+    val areBuildMetricsNeeded = CompilationResultCategory.BUILD_METRICS in requestedResults
+    val metricsReporter =
+        (if (areBuildMetricsNeeded) BuildMetricsReporterImpl() else DoNothingBuildMetricsReporter)
+            .let { RemoteBuildMetricsReporterAdapter(it, areBuildMetricsNeeded, compilationResults) }
 
-    return CompositeICReporter(reporters)
+    return RemoteBuildReporter(CompositeICReporter(reporters), metricsReporter)
 }
-
-

compiler/fir/analysis-tests/build.gradle.kts

@@ -25,10 +25,8 @@ dependencies {
     testRuntime(project(":kotlin-reflect"))
     testRuntime(project(":core:descriptors.runtime"))
 
-    Platform[192].orHigher {
-        testCompileOnly(intellijCoreDep()) { includeJars("intellij-core") }
-        testRuntimeOnly(intellijCoreDep()) { includeJars("intellij-core") }
-    }
+    testCompileOnly(intellijCoreDep()) { includeJars("intellij-core") }
+    testRuntimeOnly(intellijCoreDep()) { includeJars("intellij-core") }
 }
 
 sourceSets {

compiler/fir/analysis-tests/testData/builtIns/kotlin-collections.txt

@@ -1,5 +1,5 @@
 public/*package*/ open class ArraysUtilJVM : R|kotlin/Any| {
-    public/*package*/ open static fun <T : R|ft<kotlin/Any, kotlin/Any?>!|> asList(p0: ):
+    public/*package*/ open static fun <T : R|ft<@FlexibleNullability kotlin/Any, kotlin/Any?>!|> asList(p0: ):
 
     public/*package*/ constructor(): R|kotlin/collections/ArraysUtilJVM|
 

compiler/fir/analysis-tests/testData/enhancement/jsr305/NonNullNever.fir.txt

@@ -3,9 +3,9 @@
 
 }
 public open class NonNullNever : R|kotlin/Any| {
-    @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.NEVER|()) public open field field: R|kotlin/String?|
+    @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.NEVER|()) public open field field: R|@FlexibleNullability kotlin/String?|
 
-    @R|MyNullable|() public open fun foo(@R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.NEVER|()) x: R|kotlin/String?|, @R|MyNullable|() y: R|kotlin/CharSequence?|): R|kotlin/String?|
+    @R|MyNullable|() public open fun foo(@R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.NEVER|()) x: R|@FlexibleNullability kotlin/String?|, @R|MyNullable|() y: R|@FlexibleNullability kotlin/CharSequence?|): R|@FlexibleNullability kotlin/String?|
 
     public constructor(): R|NonNullNever|
 

compiler/fir/analysis-tests/testData/enhancement/jsr305/Simple.fir.txt

@@ -1,9 +1,9 @@
 public open class Simple : R|kotlin/Any| {
-    @R|javax/annotation/Nullable|() public open field field: R|kotlin/String?|
+    @R|javax/annotation/Nullable|() public open field field: R|@FlexibleNullability kotlin/String?|
 
-    @R|javax/annotation/Nullable|() public open fun foo(@R|javax/annotation/Nonnull|() x: R|kotlin/String|, @R|javax/annotation/CheckForNull|() y: R|kotlin/CharSequence?|): R|kotlin/String?|
+    @R|javax/annotation/Nullable|() public open fun foo(@R|javax/annotation/Nonnull|() x: R|@EnhancedNullability kotlin/String|, @R|javax/annotation/CheckForNull|() y: R|@FlexibleNullability kotlin/CharSequence?|): R|@FlexibleNullability kotlin/String?|
 
-    @R|javax/annotation/Nonnull|() public open fun bar(): R|kotlin/String|
+    @R|javax/annotation/Nonnull|() public open fun bar(): R|@EnhancedNullability kotlin/String|
 
     public constructor(): R|Simple|
 

compiler/fir/analysis-tests/testData/enhancement/jsr305/Strange.fir.txt

@@ -1,9 +1,9 @@
 public open class Strange : R|kotlin/Any| {
-    @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.UNKNOWN|()) public open field field: R|ft<kotlin/String, kotlin/String?>!|
+    @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.UNKNOWN|()) public open field field: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|
 
-    @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.MAYBE|()) public open fun foo(@R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.ALWAYS|()) x: R|kotlin/String|, @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.NEVER|()) y: R|kotlin/CharSequence?|): R|kotlin/String?|
+    @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.MAYBE|()) public open fun foo(@R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.ALWAYS|()) x: R|@EnhancedNullability kotlin/String|, @R|javax/annotation/Nonnull|(R|javax/annotation/meta/When.NEVER|()) y: R|@FlexibleNullability kotlin/CharSequence?|): R|@FlexibleNullability kotlin/String?|
 
-    @R|javax/annotation/Nonnull|() public open fun bar(): R|kotlin/String|
+    @R|javax/annotation/Nonnull|() public open fun bar(): R|@EnhancedNullability kotlin/String|
 
     public constructor(): R|Strange|