diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/destructuringAssignmentWithNullabilityAssertionOnExtensionReceiver_lv12.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/destructuringAssignmentWithNullabilityAssertionOnExtensionReceiver_lv12.kt
index f06b989c509..d52c674dedb 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/destructuringAssignmentWithNullabilityAssertionOnExtensionReceiver_lv12.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/destructuringAssignmentWithNullabilityAssertionOnExtensionReceiver_lv12.kt
@@ -1,8 +1,7 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
-// FILE: test.kt
+// FILE: destructuringAssignmentWithNullabilityAssertionOnExtensionReceiver_lv12.kt
 
 import kotlin.test.*
 
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inFunctionWithExpressionBody.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inFunctionWithExpressionBody.kt
index 16117b92372..6ce7005fa31 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inFunctionWithExpressionBody.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inFunctionWithExpressionBody.kt
@@ -1,6 +1,5 @@
 // !LANGUAGE: +StrictJavaNullabilityAssertions
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 
 // FILE: box.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalFunctionWithExpressionBody.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalFunctionWithExpressionBody.kt
index 835132f53b6..6143a62967a 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalFunctionWithExpressionBody.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalFunctionWithExpressionBody.kt
@@ -1,5 +1,4 @@
 // !LANGUAGE: +StrictJavaNullabilityAssertions
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 
 // FILE: box.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalVariableInitializer.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalVariableInitializer.kt
index bd002d138d5..40b293375f9 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalVariableInitializer.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inLocalVariableInitializer.kt
@@ -1,6 +1,5 @@
 // !LANGUAGE: +StrictJavaNullabilityAssertions
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 
 // FILE: box.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inMemberPropertyInitializer.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inMemberPropertyInitializer.kt
index 5e206966e28..6e5c110bfd2 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inMemberPropertyInitializer.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inMemberPropertyInitializer.kt
@@ -1,6 +1,5 @@
 // !LANGUAGE: +StrictJavaNullabilityAssertions
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 
 // FILE: box.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inPropertyGetterWithExpressionBody.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inPropertyGetterWithExpressionBody.kt
index 45a6820e5a4..4be77896f86 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inPropertyGetterWithExpressionBody.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inPropertyGetterWithExpressionBody.kt
@@ -1,6 +1,5 @@
 // !LANGUAGE: +StrictJavaNullabilityAssertions
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 
 // FILE: box.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inTopLevelPropertyInitializer.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inTopLevelPropertyInitializer.kt
index f141fc8bf20..0bd6bcdfd60 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inTopLevelPropertyInitializer.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/enhancedNullability/inTopLevelPropertyInitializer.kt
@@ -1,6 +1,5 @@
 // !LANGUAGE: +StrictJavaNullabilityAssertions
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 
 // FILE: box.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/errorMessage.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/errorMessage.kt
index 7d2171da5a3..db6aab7ffb2 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/errorMessage.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/errorMessage.kt
@@ -1,6 +1,5 @@
 // IGNORE_BACKEND_FIR: JVM_IR
 // TARGET_BACKEND: JVM
-// IGNORE_BACKEND: JVM_IR
 // FILE: test.kt
 fun f(x: String) = "Fail 1"
 
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/incWithNullabilityAssertionOnExtensionReceiverInPrivateOperator.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/incWithNullabilityAssertionOnExtensionReceiverInPrivateOperator.kt
index d844ad6fdfd..051882917da 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/incWithNullabilityAssertionOnExtensionReceiverInPrivateOperator.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/incWithNullabilityAssertionOnExtensionReceiverInPrivateOperator.kt
@@ -1,5 +1,4 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // FILE: test.kt
 // WITH_RUNTIME
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnExtensionReceiver.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnExtensionReceiver.kt
index 705b38159c2..f5c128020a3 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnExtensionReceiver.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnExtensionReceiver.kt
@@ -1,5 +1,4 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 // FILE: test.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnInlineFunExtensionReceiver.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnInlineFunExtensionReceiver.kt
index 642071e2d14..b94d69b2539 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnInlineFunExtensionReceiver.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnInlineFunExtensionReceiver.kt
@@ -1,5 +1,4 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 // FILE: test.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnMemberExtensionReceiver.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnMemberExtensionReceiver.kt
index 8979157bca6..7eeec796654 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnMemberExtensionReceiver.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnMemberExtensionReceiver.kt
@@ -1,5 +1,4 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 // FILE: test.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnPrivateMemberExtensionReceiver.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnPrivateMemberExtensionReceiver.kt
index 8f0870662da..4ec9aa48b8e 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnPrivateMemberExtensionReceiver.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/nullabilityAssertionOnPrivateMemberExtensionReceiver.kt
@@ -1,5 +1,4 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 // FILE: test.kt
diff --git a/compiler/testData/codegen/box/javaInterop/notNullAssertions/staticCallErrorMessage.kt b/compiler/testData/codegen/box/javaInterop/notNullAssertions/staticCallErrorMessage.kt
index 7e3798987f7..401402eae07 100644
--- a/compiler/testData/codegen/box/javaInterop/notNullAssertions/staticCallErrorMessage.kt
+++ b/compiler/testData/codegen/box/javaInterop/notNullAssertions/staticCallErrorMessage.kt
@@ -1,6 +1,5 @@
 // IGNORE_BACKEND_FIR: JVM_IR
 // TARGET_BACKEND: JVM
-// IGNORE_BACKEND: JVM_IR
 // FILE: test.kt
 fun f(x: String) = "Fail 1"
 
diff --git a/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_lv12.kt b/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_lv12.kt
index 9fcc4a20240..024e6b55e60 100644
--- a/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_lv12.kt
+++ b/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_lv12.kt
@@ -1,8 +1,7 @@
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
-// FILE: test.kt
+// FILE: equalsNull_lv12.kt
 import kotlin.test.*
 
 fun box(): String {
diff --git a/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_withExplicitFlag.kt b/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_withExplicitFlag.kt
index 7009b759518..8a5a423771e 100644
--- a/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_withExplicitFlag.kt
+++ b/compiler/testData/codegen/box/platformTypes/primitives/equalsNull_withExplicitFlag.kt
@@ -2,7 +2,12 @@
 // KOTLIN_CONFIGURATION_FLAGS: +JVM.NO_EXCEPTION_ON_EXPLICIT_EQUALS_FOR_BOXED_NULL
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
-// FILE: test.kt
+// FILE: equalsNull_withExplicitFlag.kt
+
+// IGNORE_BACKEND: JVM_IR
+// JVM_IR supports behavior since Kotlin 1.3,
+// and '-Xno-exception-on-explicit-equals-for-boxed-null' is a fallback flag introduced in 1.2.
+
 import kotlin.test.*
 
 fun box(): String {
diff --git a/compiler/testData/ir/irText/expressions/equals.fir.txt b/compiler/testData/ir/irText/expressions/equals.fir.txt
index da35af23b2e..3685c376256 100644
--- a/compiler/testData/ir/irText/expressions/equals.fir.txt
+++ b/compiler/testData/ir/irText/expressions/equals.fir.txt
@@ -12,7 +12,7 @@ FILE fqName:<root> fileName:/equals.kt
     VALUE_PARAMETER name:b index:1 type:kotlin.Int
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testEquals (a: kotlin.Int, b: kotlin.Int): kotlin.Boolean declared in <root>'
-        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any' type=kotlin.Boolean origin=null
+        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any' type=kotlin.Boolean origin=null
           $this: GET_VAR 'a: kotlin.Int declared in <root>.testEquals' type=kotlin.Int origin=null
           other: GET_VAR 'b: kotlin.Int declared in <root>.testEquals' type=kotlin.Int origin=null
   FUN name:testJEqeqNull visibility:public modality:FINAL <> () returnType:kotlin.Boolean
@@ -24,6 +24,6 @@ FILE fqName:<root> fileName:/equals.kt
   FUN name:testJEqualsNull visibility:public modality:FINAL <> () returnType:kotlin.Boolean
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testJEqualsNull (): kotlin.Boolean declared in <root>'
-        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any' type=kotlin.Boolean origin=null
+        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any' type=kotlin.Boolean origin=null
           $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:INT_NULL type:kotlin.Int? visibility:public [static]' type=kotlin.Int? origin=GET_PROPERTY
           other: CONST Null type=kotlin.Nothing? value=null
diff --git a/compiler/testData/ir/irText/expressions/equals.txt b/compiler/testData/ir/irText/expressions/equals.txt
index 9eb66012e45..c0da32f933f 100644
--- a/compiler/testData/ir/irText/expressions/equals.txt
+++ b/compiler/testData/ir/irText/expressions/equals.txt
@@ -12,7 +12,7 @@ FILE fqName:<root> fileName:/equals.kt
     VALUE_PARAMETER name:b index:1 type:kotlin.Int
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testEquals (a: kotlin.Int, b: kotlin.Int): kotlin.Boolean declared in <root>'
-        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override] declared in kotlin.Int' type=kotlin.Boolean origin=null
+        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Int' type=kotlin.Boolean origin=null
           $this: GET_VAR 'a: kotlin.Int declared in <root>.testEquals' type=kotlin.Int origin=null
           other: GET_VAR 'b: kotlin.Int declared in <root>.testEquals' type=kotlin.Int origin=null
   FUN name:testJEqeqNull visibility:public modality:FINAL <> () returnType:kotlin.Boolean
@@ -24,7 +24,7 @@ FILE fqName:<root> fileName:/equals.kt
   FUN name:testJEqualsNull visibility:public modality:FINAL <> () returnType:kotlin.Boolean
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testJEqualsNull (): kotlin.Boolean declared in <root>'
-        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override] declared in kotlin.Int' type=kotlin.Boolean origin=null
+        CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Int' type=kotlin.Boolean origin=null
           $this: TYPE_OP type=kotlin.Int origin=IMPLICIT_NOTNULL typeOperand=kotlin.Int
             GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:INT_NULL type:kotlin.Int? visibility:public [static]' type=kotlin.Int? origin=GET_PROPERTY
           other: CONST Null type=kotlin.Nothing? value=null
diff --git a/compiler/testData/ir/irText/expressions/implicitCastOnPlatformType.fir.txt b/compiler/testData/ir/irText/expressions/implicitCastOnPlatformType.fir.txt
index f7841f19a32..a55b0587cc6 100644
--- a/compiler/testData/ir/irText/expressions/implicitCastOnPlatformType.fir.txt
+++ b/compiler/testData/ir/irText/expressions/implicitCastOnPlatformType.fir.txt
@@ -2,5 +2,5 @@ FILE fqName:<root> fileName:/implicitCastOnPlatformType.kt
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test (): kotlin.String declared in <root>'
-        CALL 'public open fun getProperty (p0: kotlin.String?): kotlin.String? declared in java.lang.System' type=kotlin.String? origin=null
+        CALL 'public open fun getProperty (p0: kotlin.String?): kotlin.String? [operator] declared in java.lang.System' type=kotlin.String? origin=null
           p0: CONST String type=kotlin.String value="test"
diff --git a/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.fir.txt b/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.fir.txt
index 35ec0f8def1..d3d3f94f450 100644
--- a/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.fir.txt
+++ b/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.fir.txt
@@ -1,21 +1,21 @@
 FILE fqName:<root> fileName:/implicitNotNullInDestructuringAssignment.kt
-  FUN name:component1 visibility:public modality:FINAL <> ($receiver:<root>.J?) returnType:kotlin.Int
+  FUN name:component1 visibility:public modality:FINAL <> ($receiver:<root>.J?) returnType:kotlin.Int [operator]
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J?
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int declared in <root>'
+      RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>'
         CONST Int type=kotlin.Int value=1
-  FUN name:component2 visibility:private modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Int
+  FUN name:component2 visibility:private modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Int [operator]
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='private final fun component2 (): kotlin.Int declared in <root>'
+      RETURN type=kotlin.Nothing from='private final fun component2 (): kotlin.Int [operator] declared in <root>'
         CONST Int type=kotlin.Int value=2
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.J? [val]
-        CALL 'public open fun j (): <root>.J? declared in <root>.J' type=<root>.J? origin=null
+        CALL 'public open fun j (): <root>.J? [operator] declared in <root>.J' type=<root>.J? origin=null
       VAR name:a type:kotlin.Int [val]
-        CALL 'public final fun component1 (): kotlin.Int declared in <root>' type=kotlin.Int origin=null
+        CALL 'public final fun component1 (): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=null
           $receiver: GET_VAR 'val tmp_0: <root>.J? [val] declared in <root>.test' type=<root>.J? origin=null
       VAR name:b type:kotlin.Int [val]
-        CALL 'private final fun component2 (): kotlin.Int declared in <root>' type=kotlin.Int origin=null
+        CALL 'private final fun component2 (): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=null
           $receiver: GET_VAR 'val tmp_0: <root>.J? [val] declared in <root>.test' type=<root>.J? origin=null
diff --git a/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.txt b/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.txt
index c628b7c64b0..96a0fbb64fb 100644
--- a/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.txt
+++ b/compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.txt
@@ -1,13 +1,13 @@
 FILE fqName:<root> fileName:/implicitNotNullInDestructuringAssignment.kt
-  FUN name:component1 visibility:public modality:FINAL <> ($receiver:<root>.J?) returnType:kotlin.Int
+  FUN name:component1 visibility:public modality:FINAL <> ($receiver:<root>.J?) returnType:kotlin.Int [operator]
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J?
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int declared in <root>'
+      RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int [operator] declared in <root>'
         CONST Int type=kotlin.Int value=1
-  FUN name:component2 visibility:private modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Int
+  FUN name:component2 visibility:private modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Int [operator]
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='private final fun component2 (): kotlin.Int declared in <root>'
+      RETURN type=kotlin.Nothing from='private final fun component2 (): kotlin.Int [operator] declared in <root>'
         CONST Int type=kotlin.Int value=2
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
@@ -15,9 +15,9 @@ FILE fqName:<root> fileName:/implicitNotNullInDestructuringAssignment.kt
         VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.J? [val]
           CALL 'public open fun j (): <root>.J? declared in <root>.J' type=<root>.J? origin=null
         VAR name:a type:kotlin.Int [val]
-          CALL 'public final fun component1 (): kotlin.Int declared in <root>' type=kotlin.Int origin=COMPONENT_N(index=1)
+          CALL 'public final fun component1 (): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=COMPONENT_N(index=1)
             $receiver: GET_VAR 'val tmp_0: <root>.J? [val] declared in <root>.test' type=<root>.J? origin=null
         VAR name:b type:kotlin.Int [val]
-          CALL 'private final fun component2 (): kotlin.Int declared in <root>' type=kotlin.Int origin=COMPONENT_N(index=2)
+          CALL 'private final fun component2 (): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=COMPONENT_N(index=2)
             $receiver: TYPE_OP type=<root>.J origin=IMPLICIT_NOTNULL typeOperand=<root>.J
               GET_VAR 'val tmp_0: <root>.J? [val] declared in <root>.test' type=<root>.J? origin=null
diff --git a/compiler/testData/ir/irText/expressions/jvmStaticFieldReference.fir.txt b/compiler/testData/ir/irText/expressions/jvmStaticFieldReference.fir.txt
index 661b0b62033..3959cac1690 100644
--- a/compiler/testData/ir/irText/expressions/jvmStaticFieldReference.fir.txt
+++ b/compiler/testData/ir/irText/expressions/jvmStaticFieldReference.fir.txt
@@ -1,14 +1,14 @@
 FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
   FUN name:testFun visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+      CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit [operator] declared in java.io.PrintStream' type=kotlin.Unit origin=null
         $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
         p0: CONST String type=kotlin.String value="testFun"
   PROPERTY name:testProp visibility:public modality:FINAL [var]
     FUN name:<get-testProp> visibility:public modality:FINAL <> () returnType:kotlin.Any
       correspondingProperty: PROPERTY name:testProp visibility:public modality:FINAL [var]
       BLOCK_BODY
-        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit [operator] declared in java.io.PrintStream' type=kotlin.Unit origin=null
           $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
           p0: CONST String type=kotlin.String value="testProp/get"
         RETURN type=kotlin.Nothing from='public final fun <get-testProp> (): kotlin.Any declared in <root>'
@@ -17,7 +17,7 @@ FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
       correspondingProperty: PROPERTY name:testProp visibility:public modality:FINAL [var]
       VALUE_PARAMETER name:value index:0 type:kotlin.Any
       BLOCK_BODY
-        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit [operator] declared in java.io.PrintStream' type=kotlin.Unit origin=null
           $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
           p0: CONST String type=kotlin.String value="testProp/set"
   CLASS CLASS name:TestClass modality:FINAL visibility:public superTypes:[kotlin.Any]
@@ -33,7 +33,7 @@ FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
               then: BLOCK type=kotlin.Int origin=null
-                CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+                CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit [operator] declared in java.io.PrintStream' type=kotlin.Unit origin=null
                   $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
                   p0: CONST String type=kotlin.String value="TestClass/test"
                 CONST Int type=kotlin.Int value=42
@@ -46,12 +46,12 @@ FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
               receiver: GET_VAR '<this>: <root>.TestClass declared in <root>.TestClass.<get-test>' type=<root>.TestClass origin=null
     ANONYMOUS_INITIALIZER isStatic=false
       BLOCK_BODY
-        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit [operator] declared in java.io.PrintStream' type=kotlin.Unit origin=null
           $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
           p0: CONST String type=kotlin.String value="TestClass/init"
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override]
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
-        public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any
       VALUE_PARAMETER name:other index:0 type:kotlin.Any?
     FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
diff --git a/compiler/testData/ir/irText/types/implicitNotNullOnPlatformType.fir.txt b/compiler/testData/ir/irText/types/implicitNotNullOnPlatformType.fir.txt
index 44de0e68670..65d510262fb 100644
--- a/compiler/testData/ir/irText/types/implicitNotNullOnPlatformType.fir.txt
+++ b/compiler/testData/ir/irText/types/implicitNotNullOnPlatformType.fir.txt
@@ -5,6 +5,6 @@ FILE fqName:<root> fileName:/implicitNotNullOnPlatformType.kt
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun f (s: kotlin.String): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        s: CALL 'public open fun s (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
+        s: CALL 'public open fun s (): kotlin.String? [operator] declared in <root>.J' type=kotlin.String? origin=null
       CALL 'public final fun f (s: kotlin.String): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         s: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:STRING type:kotlin.String? visibility:public [static]' type=kotlin.String? origin=GET_PROPERTY