IR BE common: IrSimpleFunction.isFakeOverride

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/ir/IrUtils.kt

@@ -485,7 +485,8 @@ fun IrClass.addFakeOverrides() {
                 isExternal = irFunction.isExternal,
                 isTailrec = irFunction.isTailrec,
                 isSuspend = irFunction.isSuspend,
-                isExpect = irFunction.isExpect
+                isExpect = irFunction.isExpect,
+                isFakeOverride = true
             ).apply {
                 descriptor.bind(this)
                 parent = this@addFakeOverrides
@@ -526,7 +527,8 @@ fun createStaticFunctionWithReceivers(
         isExternal = false,
         isTailrec = false,
         isSuspend = oldFunction.isSuspend,
-        isExpect = oldFunction.isExpect
+        isExpect = oldFunction.isExpect,
+        isFakeOverride = origin == IrDeclarationOrigin.FAKE_OVERRIDE
     ).apply {
         descriptor.bind(this)
         parent = irParent

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/AbstractSuspendFunctionsLowering.kt

@@ -488,7 +488,8 @@ abstract class AbstractSuspendFunctionsLowering<C : CommonBackendContext>(val co
                 isExternal = false,
                 isTailrec = false,
                 isSuspend = false,
-                isExpect = false
+                isExpect = false,
+                isFakeOverride = false
             ).apply {
                 d.bind(this)
                 parent = coroutineClass
@@ -554,7 +555,8 @@ abstract class AbstractSuspendFunctionsLowering<C : CommonBackendContext>(val co
                 isExternal = false,
                 isTailrec = false,
                 isSuspend = true,
-                isExpect = false
+                isExpect = false,
+                isFakeOverride = false
             ).apply {
                 d.bind(this)
                 parent = coroutineClass
@@ -612,7 +614,8 @@ abstract class AbstractSuspendFunctionsLowering<C : CommonBackendContext>(val co
                     isExternal = stateMachineFunction.isExternal,
                     isTailrec = stateMachineFunction.isTailrec,
                     isSuspend = stateMachineFunction.isSuspend,
-                    isExpect = stateMachineFunction.isExpect
+                    isExpect = stateMachineFunction.isExpect,
+                    isFakeOverride = false
                 ).apply {
                     d.bind(this)
                     parent = coroutineClass

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/DefaultArgumentStubGenerator.kt

@@ -523,7 +523,8 @@ private fun buildFunctionDeclaration(irFunction: IrFunction, origin: IrDeclarati
                 isExternal = false,
                 isTailrec = false,
                 isSuspend = irFunction.isSuspend,
-                isExpect = irFunction.isExpect
+                isExpect = irFunction.isExpect,
+                isFakeOverride = origin == IrDeclarationOrigin.FAKE_OVERRIDE
             ).also {
                 descriptor.bind(it)
                 it.parent = irFunction.parent

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/InitializersLowering.kt

@@ -7,7 +7,6 @@ package org.jetbrains.kotlin.backend.common.lower
 
 import org.jetbrains.kotlin.backend.common.ClassLoweringPass
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
-import org.jetbrains.kotlin.backend.common.deepCopyWithWrappedDescriptors
 import org.jetbrains.kotlin.backend.common.descriptors.WrappedSimpleFunctionDescriptor
 import org.jetbrains.kotlin.backend.common.ir.SetDeclarationsParentVisitor
 import org.jetbrains.kotlin.backend.common.phaser.makeIrFilePhase
@@ -18,16 +17,17 @@ import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.declarations.impl.IrFunctionImpl
-import org.jetbrains.kotlin.ir.expressions.*
+import org.jetbrains.kotlin.ir.expressions.IrBlock
+import org.jetbrains.kotlin.ir.expressions.IrExpression
+import org.jetbrains.kotlin.ir.expressions.IrInstanceInitializerCall
+import org.jetbrains.kotlin.ir.expressions.IrStatementOriginImpl
 import org.jetbrains.kotlin.ir.expressions.impl.IrBlockBodyImpl
 import org.jetbrains.kotlin.ir.expressions.impl.IrBlockImpl
 import org.jetbrains.kotlin.ir.expressions.impl.IrGetValueImpl
 import org.jetbrains.kotlin.ir.expressions.impl.IrSetFieldImpl
-import org.jetbrains.kotlin.ir.util.patchDeclarationParents
-import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
-import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
 import org.jetbrains.kotlin.ir.symbols.impl.IrSimpleFunctionSymbolImpl
 import org.jetbrains.kotlin.ir.util.deepCopyWithSymbols
+import org.jetbrains.kotlin.ir.util.patchDeclarationParents
 import org.jetbrains.kotlin.ir.visitors.*
 import org.jetbrains.kotlin.name.Name
 
@@ -149,7 +149,8 @@ class InitializersLowering(
             isExternal = false,
             isTailrec = false,
             isSuspend = false,
-            isExpect = false
+            isExpect = false,
+            isFakeOverride = false
         ).apply {
             staticInitializerDescriptor.bind(this)
             body = IrBlockBodyImpl(irClass.startOffset, irClass.endOffset,

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/LocalDeclarationsLowering.kt

@@ -522,7 +522,8 @@ class LocalDeclarationsLowering(
                 isExternal = oldDeclaration.isExternal,
                 isTailrec = oldDeclaration.isTailrec,
                 isSuspend = oldDeclaration.isSuspend,
-                isExpect = oldDeclaration.isExpect
+                isExpect = oldDeclaration.isExpect,
+                isFakeOverride = oldDeclaration.isFakeOverride
             )
             newDescriptor.bind(newDeclaration)
 

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/PropertiesLowering.kt

@@ -85,7 +85,7 @@ class PropertiesLowering(
         return IrFunctionImpl(
             UNDEFINED_OFFSET, UNDEFINED_OFFSET, origin, symbol, Name.identifier(name),
             declaration.visibility, Modality.OPEN, context.irBuiltIns.unitType,
-            isInline = false, isExternal = false, isTailrec = false, isSuspend = false, isExpect = false
+            isInline = false, isExternal = false, isTailrec = false, isSuspend = false, isExpect = false, isFakeOverride = false
         ).apply {
             descriptor.bind(this)
 

compiler/ir/backend.common/src/org/jetbrains/kotlin/ir/builders/declarations/declarationBuilders.kt

@@ -123,7 +123,8 @@ fun IrFunctionBuilder.buildFun(originalDescriptor: FunctionDescriptor? = null):
         startOffset, endOffset, origin,
         IrSimpleFunctionSymbolImpl(wrappedDescriptor),
         name, visibility, modality, returnType,
-        isInline = isInline, isExternal = isExternal, isTailrec = isTailrec, isSuspend = isSuspend, isExpect = isExpect
+        isInline = isInline, isExternal = isExternal, isTailrec = isTailrec, isSuspend = isSuspend, isExpect = isExpect,
+        isFakeOverride = origin == IrDeclarationOrigin.FAKE_OVERRIDE
     ).also {
         wrappedDescriptor.bind(it)
     }