Make it possible to run DiagnosisCompilerTestDataSpecTestGenerated from fir-low-level-api in IJ infra

compiler/tests-spec/tests/org/jetbrains/kotlin/spec/utils/tasks/GenerateSpecTests.kt

@@ -19,14 +19,15 @@ import org.jetbrains.kotlin.test.runners.AbstractFirDiagnosticTestSpec
 import java.io.File
 import java.nio.file.Files
 
-fun detectDirsWithTestsMapFileOnly(dirName: String): List<String> {
+// `baseDir` is used in Kotlin plugin from IJ infra
+fun detectDirsWithTestsMapFileOnly(dirName: String, baseDir: String = "."): List<String> {
     val excludedDirs = mutableListOf<String>()
 
-    File("$SPEC_TESTDATA_PATH/$dirName").walkTopDown().forEach { file ->
+    File("${baseDir}/$SPEC_TESTDATA_PATH/$dirName").walkTopDown().forEach { file ->
         val listFiles = Files.walk(file.toPath()).filter(Files::isRegularFile)
 
         if (file.isDirectory && listFiles?.allMatch { it.endsWith(TESTS_MAP_FILENAME) } == true) {
-            val relativePath = file.relativeTo(File("$SPEC_TESTDATA_PATH/$dirName")).path
+            val relativePath = file.relativeTo(File("${baseDir}/$SPEC_TESTDATA_PATH/$dirName")).path
 
             if (!excludedDirs.any { relativePath.startsWith(it) }) {
                 excludedDirs.add(relativePath)

prepare/ide-plugin-dependencies/kotlin-compiler-testdata-for-ide/build.gradle.kts

@@ -17,6 +17,7 @@ idePluginDependency {
             "compiler/fir/analysis-tests/testData/resolveWithStdlib",
             "compiler/testData/diagnostics/tests",
             "compiler/testData/diagnostics/helpers",
+            "compiler/tests-spec/testData",
             "compiler/testData/diagnostics/testsWithStdLib"
         ).forEach {
             from(rootDir.resolve(it)) {

prepare/ide-plugin-dependencies/kotlin-compiler-tests-for-ide/build.gradle.kts

@@ -7,6 +7,7 @@ publishTestJarsForIde(
         ":compiler:test-infrastructure",
         ":compiler:tests-common-new",
         ":compiler:test-infrastructure-utils",
-        ":compiler:tests-compiler-utils"
+        ":compiler:tests-compiler-utils",
+        ":compiler:tests-spec"
     )
 )