IR: additional callable reference adapter stuff in IR

- IrFunctionReference.reflectionTarget: IrFunctionSymbol?
- add separate declaration origin for callable reference adapters
- bump IR ABI version

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt

@@ -911,7 +911,8 @@ class Fir2IrVisitor(
                 is IrFunctionSymbol -> {
                     IrFunctionReferenceImpl(
                         startOffset, endOffset, type, symbol,
-                        0
+                        typeArgumentsCount = 0,
+                        reflectionTarget = symbol
                     )
                 }
                 else -> {

compiler/fir/fir2ir/tests/org/jetbrains/kotlin/fir/Fir2IrTextTestGenerated.java

@@ -1480,6 +1480,11 @@ public class Fir2IrTextTestGenerated extends AbstractFir2IrTextTest {
                 runTest("compiler/testData/ir/irText/expressions/funInterface/partialSam.kt");
             }
 
+            @TestMetadata("samConversionOnCallableReference.kt")
+            public void testSamConversionOnCallableReference() throws Exception {
+                runTest("compiler/testData/ir/irText/expressions/funInterface/samConversionOnCallableReference.kt");
+            }
+
             @TestMetadata("samConversionsWithSmartCasts.kt")
             public void testSamConversionsWithSmartCasts() throws Exception {
                 runTest("compiler/testData/ir/irText/expressions/funInterface/samConversionsWithSmartCasts.kt");

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

@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.ir.util.patchDeclarationParents
 import org.jetbrains.kotlin.ir.util.transformDeclarationsFlat
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
 import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
+import org.jetbrains.kotlin.utils.addToStdlib.cast
 
 class InnerClassesLowering(val context: BackendContext) : ClassLoweringPass {
     private val IrValueSymbol.classForImplicitThis: IrClass?
@@ -170,6 +171,13 @@ class InnerClassConstructorCallsLowering(val context: BackendContext) : FileLowe
                 if (!parent.isInner) return expression
 
                 val newCallee = context.declarationFactory.getInnerClassConstructorWithOuterThisParameter(callee.owner)
+                val newReflectionTarget = expression.reflectionTarget?.let { reflectionTarget ->
+                    if (reflectionTarget is IrConstructorSymbol) {
+                        context.declarationFactory.getInnerClassConstructorWithOuterThisParameter(reflectionTarget.owner)
+                    } else {
+                        null
+                    }
+                }
 
                 val newReference = expression.run {
                     IrFunctionReferenceImpl(
@@ -178,6 +186,7 @@ class InnerClassConstructorCallsLowering(val context: BackendContext) : FileLowe
                         type,
                         newCallee.symbol,
                         typeArgumentsCount,
+                        newReflectionTarget?.symbol,
                         origin
                     )
                 }

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

@@ -383,12 +383,14 @@ class LocalDeclarationsLowering(
 
                 val oldCallee = expression.symbol.owner
                 val newCallee = oldCallee.transformed ?: return expression
+                val newReflectionTarget = expression.reflectionTarget?.run { owner.transformed }
 
                 return IrFunctionReferenceImpl(
                     expression.startOffset, expression.endOffset,
                     expression.type, // TODO functional type for transformed descriptor
                     newCallee.symbol,
                     newCallee.typeParameters.size,
+                    newReflectionTarget?.symbol,
                     expression.origin
                 ).also {
                     it.fillArguments2(expression, newCallee)

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

@@ -37,7 +37,10 @@ class ProvisionalFunctionExpressionLowering :
                 function,
                 IrFunctionReferenceImpl(
                     startOffset, endOffset, type,
-                    function.symbol, 0, origin
+                    function.symbol,
+                    typeArgumentsCount = 0,
+                    reflectionTarget = null,
+                    origin = origin
                 )
             )
         )

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/ir/IrBuilder.kt

@@ -188,8 +188,8 @@ object JsIrBuilder {
     fun buildComposite(type: IrType, statements: List<IrStatement> = emptyList()) =
         IrCompositeImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, type, SYNTHESIZED_STATEMENT, statements)
 
-    fun buildFunctionReference(type: IrType, symbol: IrFunctionSymbol) =
+    fun buildFunctionReference(type: IrType, symbol: IrFunctionSymbol, reflectionTarget: IrFunctionSymbol? = symbol) =
-        IrFunctionReferenceImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, type, symbol, 0, null)
+        IrFunctionReferenceImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, type, symbol, 0, reflectionTarget, null)
 
     fun buildVar(
         type: IrType,

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/JsDefaultArgumentStubGenerator.kt

@@ -79,8 +79,9 @@ class JsDefaultCallbackGenerator(val context: JsIrBackendContext): BodyLoweringP
                 endOffset,
                 context.irBuiltIns.anyType,
                 originalFunction.symbol,
-                0,
+                typeArgumentsCount = 0,
-                BIND_CALL
+                reflectionTarget = originalFunction.symbol,
+                origin = BIND_CALL
             )
         }
 

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PrivateMembersLowering.kt

@@ -80,7 +80,7 @@ class PrivateMembersLowering(val context: JsIrBackendContext) : FileLoweringPass
                             expression.startOffset, expression.endOffset,
                             expression.type,
                             it.symbol, expression.typeArgumentsCount,
-                            expression.valueArgumentsCount, expression.origin
+                            expression.valueArgumentsCount, expression.reflectionTarget, expression.origin
                         )
                     }
                 } ?: expression

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/ScriptRemoveReceiverLowering.kt

@@ -77,6 +77,7 @@ private class ScriptRemoveReceiverLowering(val context: CommonBackendContext) :
                             symbol,
                             typeArgumentsCount,
                             valueArgumentsCount,
+                            reflectionTarget,
                             origin
                         ).also {
                             it.dispatchReceiver = dispatchReceiver

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/CallableReferenceLowering.kt

@@ -334,6 +334,7 @@ internal class CallableReferenceLowering(private val context: JvmBackendContext)
                             irFunctionReference.type,
                             irFunctionReference.symbol,
                             0,
+                            irFunctionReference.reflectionTarget,
                             null
                         )
                     )

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InlineCallableReferenceToLambda.kt

@@ -106,6 +106,7 @@ internal class InlineCallableReferenceToLambdaPhase(val context: JvmBackendConte
                 field.type,
                 function.symbol,
                 typeArgumentsCount = 0,
+                reflectionTarget = null,
                 origin = IrStatementOrigin.LAMBDA
             ).apply {
                 copyAttributes(expression)
@@ -174,8 +175,9 @@ internal class InlineCallableReferenceToLambdaPhase(val context: JvmBackendConte
                 expression.endOffset,
                 function.returnType,
                 function.symbol,
-                function.typeParameters.size,
+                typeArgumentsCount = function.typeParameters.size,
-                IrStatementOrigin.LAMBDA
+                reflectionTarget = null,
+                origin = IrStatementOrigin.LAMBDA
             ).apply {
                 copyAttributes(expression)
             }

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InterfaceLowering.kt

@@ -261,6 +261,7 @@ internal class InterfaceLowering(val context: JvmBackendContext) : IrElementTran
                         type,
                         newFunction.symbol,
                         typeArgumentsCount,
+                        expression.reflectionTarget,
                         origin
                     ).apply {
                         copyTypeAndValueArgumentsFrom(expression, receiversAsArguments = true)

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/JvmInlineClassLowering.kt

@@ -229,7 +229,7 @@ private class JvmInlineClassLowering(private val context: JvmBackendContext) : F
         return IrFunctionReferenceImpl(
             expression.startOffset, expression.endOffset, expression.type,
             function.symbol, function.typeParameters.size,
-            function.valueParameters.size, expression.origin
+            function.valueParameters.size, expression.reflectionTarget, expression.origin
         ).apply {
             buildReplacement(expression.symbol.owner, expression, replacement)
         }.copyAttributes(expression)

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/PropertyReferenceLowering.kt

@@ -105,7 +105,10 @@ internal class PropertyReferenceLowering(val context: JvmBackendContext) : Class
                     // Delay the computation of the signature until after inline classes lowering to make sure
                     // we mangle the function names correctly for things like extension methods on inline classes.
                     irCall(signatureStringIntrinsic).apply {
-                        putValueArgument(0, IrFunctionReferenceImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, expression.type, getter, 0, null))
+                        putValueArgument(
+                            0,
+                            IrFunctionReferenceImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET, expression.type, getter, 0, getter, null)
+                        )
                     }
                 }
         } ?: irString(expression.field!!.owner.signature)

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/SyntheticAccessorLowering.kt

@@ -122,7 +122,7 @@ internal class SyntheticAccessorLowering(val context: JvmBackendContext) : IrEle
                 return IrFunctionReferenceImpl(
                     expression.startOffset, expression.endOffset, expression.type,
                     accessor.symbol, accessor.typeParameters.size,
-                    accessor.valueParameters.size, expression.origin
+                    accessor.valueParameters.size, accessor.symbol, expression.origin
                 )
             }
         }

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/ReflectionReferencesGenerator.kt

@@ -98,8 +98,6 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
         }
     }
 
-    private val adapterOrigin = IrDeclarationOrigin.DEFINED // TODO special declaration origin for callable reference adapter?
-
     private fun isTrivialArgumentAdaptation(irAdapteeCall: IrFunctionAccessExpression): Boolean {
         for (i in 0 until irAdapteeCall.valueArgumentsCount) {
             val irValueArgument = irAdapteeCall.getValueArgument(i) ?: return false
@@ -162,8 +160,9 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
                     startOffset, endOffset,
                     irFunctionalType,
                     irAdapterFun.symbol,
-                    0,
+                    typeArgumentsCount = 0,
-                    irAdapterFun.valueParameters.size
+                    valueArgumentsCount = irAdapterFun.valueParameters.size,
+                    reflectionTarget = null
                 )
             )
         }
@@ -341,12 +340,14 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
     ): IrSimpleFunction {
         val adapterFunctionDescriptor = WrappedSimpleFunctionDescriptor()
 
-
         return context.symbolTable.declareSimpleFunction(
-            startOffset, endOffset, adapterOrigin, adapterFunctionDescriptor
+            startOffset, endOffset,
+            IrDeclarationOrigin.ADAPTER_FOR_CALLABLE_REFERENCE,
+            adapterFunctionDescriptor
         ) { irAdapterSymbol ->
             IrFunctionImpl(
-                startOffset, endOffset, adapterOrigin,
+                startOffset, endOffset,
+                IrDeclarationOrigin.ADAPTER_FOR_CALLABLE_REFERENCE,
                 irAdapterSymbol,
                 adapteeDescriptor.name,
                 Visibilities.LOCAL,
@@ -371,11 +372,14 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
                     ktExpectedParameterTypes.mapIndexedTo(irAdapterFun.valueParameters) { index, ktExpectedParameterType ->
                         val adapterValueParameterDescriptor = WrappedValueParameterDescriptor()
                         context.symbolTable.declareValueParameter(
-                            startOffset, endOffset, adapterOrigin, adapterValueParameterDescriptor,
+                            startOffset, endOffset,
+                            IrDeclarationOrigin.ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE,
+                            adapterValueParameterDescriptor,
                             ktExpectedParameterType.toIrType()
                         ) { irAdapterParameterSymbol ->
                             IrValueParameterImpl(
-                                startOffset, endOffset, adapterOrigin,
+                                startOffset, endOffset,
+                                IrDeclarationOrigin.ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE,
                                 irAdapterParameterSymbol,
                                 Name.identifier("p$index"),
                                 index,
@@ -487,7 +491,10 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
     ): IrFunctionReference =
         IrFunctionReferenceImpl(
             startOffset, endOffset, type.toIrType(),
-            symbol, descriptor.typeParametersCount, origin
+            symbol,
+            typeArgumentsCount = descriptor.typeParametersCount,
+            reflectionTarget = symbol,
+            origin = origin
         ).apply {
             context.callToSubstitutedDescriptorMap[this] = descriptor
             putTypeArguments(typeArguments) { it.toIrType() }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrDeclarationOrigin.kt

@@ -53,6 +53,9 @@ interface IrDeclarationOrigin {
     object FIELD_FOR_ENUM_VALUES : IrDeclarationOriginImpl("FIELD_FOR_ENUM_VALUES", isSynthetic = true)
     object FIELD_FOR_OBJECT_INSTANCE : IrDeclarationOriginImpl("FIELD_FOR_OBJECT_INSTANCE")
 
+    object ADAPTER_FOR_CALLABLE_REFERENCE : IrDeclarationOriginImpl("ADAPTER_FOR_CALLABLE_REFERENCE")
+    object ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE : IrDeclarationOriginImpl("ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE")
+
     val isSynthetic: Boolean get() = false
 }
 

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrCallableReference.kt

@@ -22,8 +22,15 @@ interface IrCallableReference : IrMemberAccessExpression
 
 interface IrFunctionReference : IrCallableReference {
     override val symbol: IrFunctionSymbol
+    val reflectionTarget: IrFunctionSymbol?
 }
 
+val IrFunctionReference.isWithReflection: Boolean
+    get() = reflectionTarget != null
+
+val IrFunctionReference.isAdapterWithReflection: Boolean
+    get() = reflectionTarget != null && reflectionTarget != symbol
+
 interface IrPropertyReference : IrCallableReference {
     override val symbol: IrPropertySymbol
     val field: IrFieldSymbol?

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrFunctionReferenceImpl.kt

@@ -29,6 +29,7 @@ class IrFunctionReferenceImpl(
     override val symbol: IrFunctionSymbol,
     typeArgumentsCount: Int,
     valueArgumentsCount: Int,
+    override val reflectionTarget: IrFunctionSymbol? = symbol,
     origin: IrStatementOrigin? = null
 ) :
     IrCallWithIndexedArgumentsBase(
@@ -47,8 +48,17 @@ class IrFunctionReferenceImpl(
         type: IrType,
         symbol: IrFunctionSymbol,
         typeArgumentsCount: Int,
+        reflectionTarget: IrFunctionSymbol?,
         origin: IrStatementOrigin? = null
-    ) : this(startOffset, endOffset, type, symbol, typeArgumentsCount, symbol.descriptor.valueParameters.size, origin)
+    ) : this(
+        startOffset, endOffset,
+        type,
+        symbol,
+        typeArgumentsCount,
+        symbol.descriptor.valueParameters.size,
+        reflectionTarget,
+        origin
+    )
 
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =
         visitor.visitFunctionReference(this, data)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/DeepCopyIrTreeWithSymbols.kt

@@ -584,12 +584,14 @@ open class DeepCopyIrTreeWithSymbols(
 
     override fun visitFunctionReference(expression: IrFunctionReference): IrFunctionReference {
         val symbol = symbolRemapper.getReferencedFunction(expression.symbol)
+        val reflectionTarget = expression.reflectionTarget?.let { symbolRemapper.getReferencedFunction(it) }
         return IrFunctionReferenceImpl(
             expression.startOffset, expression.endOffset,
             expression.type.remapType(),
             symbol,
             expression.typeArgumentsCount,
             expression.valueArgumentsCount,
+            reflectionTarget,
             mapStatementOrigin(expression.origin)
         ).apply {
             copyRemappedTypeArgumentsFrom(expression)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt

@@ -635,7 +635,15 @@ class RenderIrElementVisitor(private val normalizeNames: Boolean = false) : IrEl
         "THROW type=${expression.type.render()}"
 
     override fun visitFunctionReference(expression: IrFunctionReference, data: Nothing?): String =
-        "FUNCTION_REFERENCE '${expression.symbol.renderReference()}' type=${expression.type.render()} origin=${expression.origin}"
+        "FUNCTION_REFERENCE '${expression.symbol.renderReference()}' " +
+                "type=${expression.type.render()} origin=${expression.origin} " +
+                "reflectionTarget=${renderReflectionTarget(expression)}"
+
+    private fun renderReflectionTarget(expression: IrFunctionReference) =
+        if (expression.symbol == expression.reflectionTarget)
+            "<same>"
+        else
+            expression.reflectionTarget?.renderReference()
 
     override fun visitPropertyReference(expression: IrPropertyReference, data: Nothing?): String =
         buildTrimEnd {

compiler/ir/serialization.common/src/KotlinIr.proto

@@ -219,6 +219,7 @@ message IrFunctionReference {
   required int32 symbol = 1;
   optional IrStatementOrigin origin = 2;
   required MemberAccessCommon member_access = 3;
+  optional int32 reflectionTarget = 4;
 }
 
 message IrLocalDelegatedPropertyReference {

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrFileDeserializer.kt

@@ -448,6 +448,7 @@ abstract class IrFileDeserializer(
 
         val symbol = deserializeIrSymbol(proto.symbol) as IrFunctionSymbol
         val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
+        val reflectionTarget = if (proto.hasReflectionTarget()) deserializeIrSymbol(proto.reflectionTarget) as IrFunctionSymbol else null
         val callable = IrFunctionReferenceImpl(
             start,
             end,
@@ -455,6 +456,7 @@ abstract class IrFileDeserializer(
             symbol,
             proto.memberAccess.typeArguments.typeArgumentCount,
             proto.memberAccess.valueArgumentCount,
+            reflectionTarget,
             origin
         )
         deserializeMemberAccessCommon(callable, proto.memberAccess)

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrFileSerializer.kt

@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.backend.common.serialization
 import org.jetbrains.kotlin.backend.common.LoggingContext
 import org.jetbrains.kotlin.backend.common.ir.ir2string
 import org.jetbrains.kotlin.descriptors.*
-import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.descriptors.ClassKind.*
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.SourceManager
@@ -18,7 +17,6 @@ import org.jetbrains.kotlin.ir.symbols.*
 import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.util.findTopLevelDeclaration
 import org.jetbrains.kotlin.ir.util.lineStartOffsets
-import org.jetbrains.kotlin.ir.util.module
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.ir.visitors.acceptVoid
@@ -31,6 +29,7 @@ import org.jetbrains.kotlin.library.impl.IrMemoryDeclarationWriter
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.types.Variance
+import org.jetbrains.kotlin.backend.common.serialization.proto.Actual as ProtoActual
 import org.jetbrains.kotlin.backend.common.serialization.proto.ClassKind as ProtoClassKind
 import org.jetbrains.kotlin.backend.common.serialization.proto.Coordinates as ProtoCoordinates
 import org.jetbrains.kotlin.backend.common.serialization.proto.FieldAccessCommon as ProtoFieldAccessCommon
@@ -116,7 +115,6 @@ import org.jetbrains.kotlin.backend.common.serialization.proto.ModalityKind as P
 import org.jetbrains.kotlin.backend.common.serialization.proto.NullableIrExpression as ProtoNullableIrExpression
 import org.jetbrains.kotlin.backend.common.serialization.proto.TypeArguments as ProtoTypeArguments
 import org.jetbrains.kotlin.backend.common.serialization.proto.Visibility as ProtoVisibility
-import org.jetbrains.kotlin.backend.common.serialization.proto.Actual as ProtoActual
 
 open class IrFileSerializer(
     val logger: LoggingContext,
@@ -542,6 +540,14 @@ open class IrFileSerializer(
         val proto = ProtoFunctionReference.newBuilder()
             .setSymbol(serializeIrSymbol(callable.symbol))
             .setMemberAccess(serializeMemberAccessCommon(callable))
+            .apply {
+                val reflectionTarget = callable.reflectionTarget
+                if (reflectionTarget != null) {
+                    setReflectionTarget(serializeIrSymbol(reflectionTarget))
+                } else {
+                    clearReflectionTarget()
+                }
+            }
 
         callable.origin?.let { proto.setOrigin(serializeIrStatementOrigin(it)) }
         return proto.build()

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/IrFunctionReference.java

@@ -84,6 +84,11 @@ public final class IrFunctionReference extends
             bitField0_ |= 0x00000004;
             break;
           }
+          case 32: {
+            bitField0_ |= 0x00000008;
+            reflectionTarget_ = input.readInt32();
+            break;
+          }
         }
       }
     } catch (org.jetbrains.kotlin.protobuf.InvalidProtocolBufferException e) {
@@ -163,10 +168,26 @@ public final class IrFunctionReference extends
     return memberAccess_;
   }
 
+  public static final int REFLECTIONTARGET_FIELD_NUMBER = 4;
+  private int reflectionTarget_;
+  /**
+   * <code>optional int32 reflectionTarget = 4;</code>
+   */
+  public boolean hasReflectionTarget() {
+    return ((bitField0_ & 0x00000008) == 0x00000008);
+  }
+  /**
+   * <code>optional int32 reflectionTarget = 4;</code>
+   */
+  public int getReflectionTarget() {
+    return reflectionTarget_;
+  }
+
   private void initFields() {
     symbol_ = 0;
     origin_ = org.jetbrains.kotlin.backend.common.serialization.proto.IrStatementOrigin.getDefaultInstance();
     memberAccess_ = org.jetbrains.kotlin.backend.common.serialization.proto.MemberAccessCommon.getDefaultInstance();
+    reflectionTarget_ = 0;
   }
   private byte memoizedIsInitialized = -1;
   public final boolean isInitialized() {
@@ -208,6 +229,9 @@ public final class IrFunctionReference extends
     if (((bitField0_ & 0x00000004) == 0x00000004)) {
       output.writeMessage(3, memberAccess_);
     }
+    if (((bitField0_ & 0x00000008) == 0x00000008)) {
+      output.writeInt32(4, reflectionTarget_);
+    }
     output.writeRawBytes(unknownFields);
   }
 
@@ -229,6 +253,10 @@ public final class IrFunctionReference extends
       size += org.jetbrains.kotlin.protobuf.CodedOutputStream
         .computeMessageSize(3, memberAccess_);
     }
+    if (((bitField0_ & 0x00000008) == 0x00000008)) {
+      size += org.jetbrains.kotlin.protobuf.CodedOutputStream
+        .computeInt32Size(4, reflectionTarget_);
+    }
     size += unknownFields.size();
     memoizedSerializedSize = size;
     return size;
@@ -329,6 +357,8 @@ public final class IrFunctionReference extends
       bitField0_ = (bitField0_ & ~0x00000002);
       memberAccess_ = org.jetbrains.kotlin.backend.common.serialization.proto.MemberAccessCommon.getDefaultInstance();
       bitField0_ = (bitField0_ & ~0x00000004);
+      reflectionTarget_ = 0;
+      bitField0_ = (bitField0_ & ~0x00000008);
       return this;
     }
 
@@ -364,6 +394,10 @@ public final class IrFunctionReference extends
         to_bitField0_ |= 0x00000004;
       }
       result.memberAccess_ = memberAccess_;
+      if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+        to_bitField0_ |= 0x00000008;
+      }
+      result.reflectionTarget_ = reflectionTarget_;
       result.bitField0_ = to_bitField0_;
       return result;
     }
@@ -379,6 +413,9 @@ public final class IrFunctionReference extends
       if (other.hasMemberAccess()) {
         mergeMemberAccess(other.getMemberAccess());
       }
+      if (other.hasReflectionTarget()) {
+        setReflectionTarget(other.getReflectionTarget());
+      }
       setUnknownFields(
           getUnknownFields().concat(other.unknownFields));
       return this;
@@ -577,6 +614,38 @@ public final class IrFunctionReference extends
       return this;
     }
 
+    private int reflectionTarget_ ;
+    /**
+     * <code>optional int32 reflectionTarget = 4;</code>
+     */
+    public boolean hasReflectionTarget() {
+      return ((bitField0_ & 0x00000008) == 0x00000008);
+    }
+    /**
+     * <code>optional int32 reflectionTarget = 4;</code>
+     */
+    public int getReflectionTarget() {
+      return reflectionTarget_;
+    }
+    /**
+     * <code>optional int32 reflectionTarget = 4;</code>
+     */
+    public Builder setReflectionTarget(int value) {
+      bitField0_ |= 0x00000008;
+      reflectionTarget_ = value;
+      
+      return this;
+    }
+    /**
+     * <code>optional int32 reflectionTarget = 4;</code>
+     */
+    public Builder clearReflectionTarget() {
+      bitField0_ = (bitField0_ & ~0x00000008);
+      reflectionTarget_ = 0;
+      
+      return this;
+    }
+
     // @@protoc_insertion_point(builder_scope:org.jetbrains.kotlin.backend.common.serialization.proto.IrFunctionReference)
   }
 

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/IrFunctionReferenceOrBuilder.java

@@ -33,4 +33,13 @@ public interface IrFunctionReferenceOrBuilder extends
    * <code>required .org.jetbrains.kotlin.backend.common.serialization.proto.MemberAccessCommon member_access = 3;</code>
    */
   org.jetbrains.kotlin.backend.common.serialization.proto.MemberAccessCommon getMemberAccess();
+
+  /**
+   * <code>optional int32 reflectionTarget = 4;</code>
+   */
+  boolean hasReflectionTarget();
+  /**
+   * <code>optional int32 reflectionTarget = 4;</code>
+   */
+  int getReflectionTarget();
 }

compiler/testData/ir/irText/expressions/boundCallableReferences.fir.txt

@@ -38,7 +38,7 @@ FILE fqName:<root> fileName:/boundCallableReferences.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -56,7 +56,7 @@ FILE fqName:<root> fileName:/boundCallableReferences.kt
   PROPERTY name:test3 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun qux (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun qux (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test3 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/boundCallableReferences.txt

@@ -38,7 +38,7 @@ FILE fqName:<root> fileName:/boundCallableReferences.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
           $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.A' type=<root>.A origin=null
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
@@ -58,7 +58,7 @@ FILE fqName:<root> fileName:/boundCallableReferences.kt
   PROPERTY name:test3 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun qux (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun qux (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
           $receiver: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.A' type=<root>.A origin=null
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test3 visibility:public modality:FINAL [val]

compiler/testData/ir/irText/expressions/callableReferences/constructorWithAdaptedArguments.fir.txt

@@ -69,15 +69,15 @@ FILE fqName:<root> fileName:/constructorWithAdaptedArguments.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testConstructor (): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public constructor <init> (xs: kotlin.IntArray) [primary] declared in <root>.C' type=kotlin.reflect.KFunction1<kotlin.IntArray, <root>.C> origin=null
+          FUNCTION_REFERENCE 'public constructor <init> (xs: kotlin.IntArray) [primary] declared in <root>.C' type=kotlin.reflect.KFunction1<kotlin.IntArray, <root>.C> origin=null reflectionTarget=<same>
   FUN name:testInnerClassConstructor visibility:public modality:FINAL <> (outer:<root>.Outer) returnType:IrErrorType
     VALUE_PARAMETER name:outer index:0 type:<root>.Outer
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testInnerClassConstructor (outer: <root>.Outer): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public constructor <init> (xs: kotlin.IntArray) [primary] declared in <root>.Outer.Inner' type=kotlin.reflect.KFunction1<kotlin.IntArray, <root>.Outer.Inner> origin=null
+          FUNCTION_REFERENCE 'public constructor <init> (xs: kotlin.IntArray) [primary] declared in <root>.Outer.Inner' type=kotlin.reflect.KFunction1<kotlin.IntArray, <root>.Outer.Inner> origin=null reflectionTarget=<same>
   FUN name:testInnerClassConstructorCapturingOuter visibility:public modality:FINAL <> () returnType:IrErrorType
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testInnerClassConstructorCapturingOuter (): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public constructor <init> (xs: kotlin.IntArray) [primary] declared in <root>.Outer.Inner' type=kotlin.reflect.KFunction1<kotlin.IntArray, <root>.Outer.Inner> origin=null
+          FUNCTION_REFERENCE 'public constructor <init> (xs: kotlin.IntArray) [primary] declared in <root>.Outer.Inner' type=kotlin.reflect.KFunction1<kotlin.IntArray, <root>.Outer.Inner> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/callableReferences/constructorWithAdaptedArguments.txt

@@ -71,29 +71,29 @@ FILE fqName:<root> fileName:/constructorWithAdaptedArguments.kt
       RETURN type=kotlin.Nothing from='public final fun testConstructor (): kotlin.Any declared in <root>'
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.Any>): kotlin.Any declared in <root>' type=kotlin.Any origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, <root>.C> origin=null
-            FUN name:<init> visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:<root>.C
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:<init> visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:<root>.C
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <init> (p0: kotlin.Int): <root>.C declared in <root>.testConstructor'
                   CONSTRUCTOR_CALL 'public constructor <init> (vararg xs: kotlin.Int) [primary] declared in <root>.C' type=<root>.C origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.testConstructor.<init>' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun <init> (p0: kotlin.Int): <root>.C declared in <root>.testConstructor' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.C> origin=null
+            FUNCTION_REFERENCE 'local final fun <init> (p0: kotlin.Int): <root>.C declared in <root>.testConstructor' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.C> origin=null reflectionTarget=null
   FUN name:testInnerClassConstructor visibility:public modality:FINAL <> (outer:<root>.Outer) returnType:kotlin.Any
     VALUE_PARAMETER name:outer index:0 type:<root>.Outer
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testInnerClassConstructor (outer: <root>.Outer): kotlin.Any declared in <root>'
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.Any>): kotlin.Any declared in <root>' type=kotlin.Any origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Outer.Inner> origin=null
-            FUN name:<init> visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:<root>.Outer.Inner
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:<init> visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:<root>.Outer.Inner
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <init> (p0: kotlin.Int): <root>.Outer.Inner declared in <root>.testInnerClassConstructor'
                   CONSTRUCTOR_CALL 'public constructor <init> (vararg xs: kotlin.Int) [primary] declared in <root>.Outer.Inner' type=<root>.Outer.Inner origin=null
                     $outer: GET_VAR 'outer: <root>.Outer declared in <root>.testInnerClassConstructor' type=<root>.Outer origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.testInnerClassConstructor.<init>' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun <init> (p0: kotlin.Int): <root>.Outer.Inner declared in <root>.testInnerClassConstructor' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Outer.Inner> origin=null
+            FUNCTION_REFERENCE 'local final fun <init> (p0: kotlin.Int): <root>.Outer.Inner declared in <root>.testInnerClassConstructor' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Outer.Inner> origin=null reflectionTarget=null
   FUN name:testInnerClassConstructorCapturingOuter visibility:public modality:FINAL <> () returnType:kotlin.Any
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testInnerClassConstructorCapturingOuter (): kotlin.Any declared in <root>'
@@ -101,12 +101,12 @@ FILE fqName:<root> fileName:/constructorWithAdaptedArguments.kt
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Outer.Inner> origin=null
             VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.Outer [val]
               CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Outer' type=<root>.Outer origin=null
-            FUN name:<init> visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:<root>.Outer.Inner
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:<init> visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:<root>.Outer.Inner
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <init> (p0: kotlin.Int): <root>.Outer.Inner declared in <root>.testInnerClassConstructorCapturingOuter'
                   CONSTRUCTOR_CALL 'public constructor <init> (vararg xs: kotlin.Int) [primary] declared in <root>.Outer.Inner' type=<root>.Outer.Inner origin=null
                     $outer: GET_VAR 'val tmp_0: <root>.Outer [val] declared in <root>.testInnerClassConstructorCapturingOuter' type=<root>.Outer origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.testInnerClassConstructorCapturingOuter.<init>' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun <init> (p0: kotlin.Int): <root>.Outer.Inner declared in <root>.testInnerClassConstructorCapturingOuter' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Outer.Inner> origin=null
+            FUNCTION_REFERENCE 'local final fun <init> (p0: kotlin.Int): <root>.Outer.Inner declared in <root>.testInnerClassConstructorCapturingOuter' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Outer.Inner> origin=null reflectionTarget=null

compiler/testData/ir/irText/expressions/callableReferences/genericMember.fir.txt

@@ -36,7 +36,7 @@ FILE fqName:<root> fileName:/genericMember.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.reflect.KFunction1<<root>.A<*>, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A<*>, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A<*>, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction1<<root>.A<*>, kotlin.Unit>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/callableReferences/genericMember.txt

@@ -36,7 +36,7 @@ FILE fqName:<root> fileName:/genericMember.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.reflect.KFunction1<<root>.A<kotlin.String>, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A<kotlin.String>, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A<kotlin.String>, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction1<<root>.A<kotlin.String>, kotlin.Unit>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/callableReferences/importedFromObject.fir.txt

@@ -55,7 +55,7 @@ FILE fqName:test fileName:/importedFromObject.kt
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.reflect.KFunction0<kotlin.String> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.String>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -64,7 +64,7 @@ FILE fqName:test fileName:/importedFromObject.kt
   PROPERTY name:test2a visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2a type:kotlin.reflect.KFunction0<kotlin.String> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2a> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.String>
       correspondingProperty: PROPERTY name:test2a visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/callableReferences/importedFromObject.txt

@@ -57,7 +57,7 @@ FILE fqName:test fileName:/importedFromObject.kt
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.reflect.KFunction0<kotlin.String> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null reflectionTarget=<same>
           $this: GET_OBJECT 'CLASS OBJECT name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]' type=test.Foo
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.String>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
@@ -67,7 +67,7 @@ FILE fqName:test fileName:/importedFromObject.kt
   PROPERTY name:test2a visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2a type:kotlin.reflect.KFunction0<kotlin.String> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.String declared in test.Foo' type=kotlin.reflect.KFunction0<kotlin.String> origin=null reflectionTarget=<same>
           $this: GET_OBJECT 'CLASS OBJECT name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]' type=test.Foo
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2a> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.String>
       correspondingProperty: PROPERTY name:test2a visibility:public modality:FINAL [val]

compiler/testData/ir/irText/expressions/callableReferences/typeArguments.fir.txt

@@ -34,7 +34,7 @@ FILE fqName:<root> fileName:/typeArguments.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.Function1<kotlin.Int, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun topLevel1 <T> (x: T of <root>.topLevel1): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun topLevel1 <T> (x: T of <root>.topLevel1): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, kotlin.Unit>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -43,7 +43,7 @@ FILE fqName:<root> fileName:/typeArguments.kt
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.Function1<kotlin.collections.List<kotlin.String>, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun topLevel2 <T> (x: kotlin.collections.List<T of <root>.topLevel2>): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<kotlin.collections.List<kotlin.String>, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun topLevel2 <T> (x: kotlin.collections.List<T of <root>.topLevel2>): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<kotlin.collections.List<kotlin.String>, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.collections.List<kotlin.String>, kotlin.Unit>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -52,7 +52,7 @@ FILE fqName:<root> fileName:/typeArguments.kt
   PROPERTY name:test3 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.Function1<kotlin.Int, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun objectMember <T> (x: T of <root>.Host.objectMember): kotlin.Unit [inline] declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun objectMember <T> (x: T of <root>.Host.objectMember): kotlin.Unit [inline] declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, kotlin.Unit>
       correspondingProperty: PROPERTY name:test3 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/callableReferences/typeArguments.txt

@@ -34,7 +34,7 @@ FILE fqName:<root> fileName:/typeArguments.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.Function1<kotlin.Int, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun topLevel1 <T> (x: T of <root>.topLevel1): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun topLevel1 <T> (x: T of <root>.topLevel1): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, kotlin.Unit> origin=null reflectionTarget=<same>
           <T>: kotlin.Int
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, kotlin.Unit>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
@@ -44,7 +44,7 @@ FILE fqName:<root> fileName:/typeArguments.kt
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.Function1<kotlin.collections.List<kotlin.String>, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun topLevel2 <T> (x: kotlin.collections.List<T of <root>.topLevel2>): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.collections.List<kotlin.String>, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun topLevel2 <T> (x: kotlin.collections.List<T of <root>.topLevel2>): kotlin.Unit [inline] declared in <root>' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.collections.List<kotlin.String>, kotlin.Unit> origin=null reflectionTarget=<same>
           <T>: kotlin.String
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.collections.List<kotlin.String>, kotlin.Unit>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
@@ -54,7 +54,7 @@ FILE fqName:<root> fileName:/typeArguments.kt
   PROPERTY name:test3 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.Function1<kotlin.Int, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun objectMember <T> (x: T of <root>.Host.objectMember): kotlin.Unit [inline] declared in <root>.Host' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun objectMember <T> (x: T of <root>.Host.objectMember): kotlin.Unit [inline] declared in <root>.Host' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, kotlin.Unit> origin=null reflectionTarget=<same>
           <T>: kotlin.Int
           $this: GET_OBJECT 'CLASS OBJECT name:Host modality:FINAL visibility:public superTypes:[kotlin.Any]' type=<root>.Host
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, kotlin.Unit>

compiler/testData/ir/irText/expressions/callableReferences/withAdaptedArguments.fir.txt

@@ -51,19 +51,19 @@ FILE fqName:<root> fileName:/withAdaptedArguments.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testDefault (): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun fnWithDefault (a: kotlin.Int, b: kotlin.Int): kotlin.String declared in <root>' type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun fnWithDefault (a: kotlin.Int, b: kotlin.Int): kotlin.String declared in <root>' type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.String> origin=null reflectionTarget=<same>
   FUN name:testVararg visibility:public modality:FINAL <> () returnType:IrErrorType
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testVararg (): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun fnWithVarargs (xs: kotlin.IntArray): kotlin.String declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun fnWithVarargs (xs: kotlin.IntArray): kotlin.String declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>
   FUN name:testCoercionToUnit visibility:public modality:FINAL <> () returnType:IrErrorType
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testCoercionToUnit (): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/coerceToUnit]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun fnWithDefault (a: kotlin.Int, b: kotlin.Int): kotlin.String declared in <root>' type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun fnWithDefault (a: kotlin.Int, b: kotlin.Int): kotlin.String declared in <root>' type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.String> origin=null reflectionTarget=<same>
   FUN name:testImportedObjectMember visibility:public modality:FINAL <> () returnType:IrErrorType
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testImportedObjectMember (): IrErrorType declared in <root>'
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun importedObjectMemberWithVarargs (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun importedObjectMemberWithVarargs (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/callableReferences/withAdaptedArguments.txt

@@ -52,49 +52,49 @@ FILE fqName:<root> fileName:/withAdaptedArguments.kt
       RETURN type=kotlin.Nothing from='public final fun testDefault (): kotlin.String declared in <root>'
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.String>): kotlin.String declared in <root>' type=kotlin.String origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null
-            FUN name:fnWithDefault visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.String
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:fnWithDefault visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.String
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun fnWithDefault (p0: kotlin.Int): kotlin.String declared in <root>.testDefault'
                   CALL 'public final fun fnWithDefault (a: kotlin.Int, b: kotlin.Int): kotlin.String declared in <root>' type=kotlin.String origin=null
                     a: GET_VAR 'p0: kotlin.Int declared in <root>.testDefault.fnWithDefault' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun fnWithDefault (p0: kotlin.Int): kotlin.String declared in <root>.testDefault' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null
+            FUNCTION_REFERENCE 'local final fun fnWithDefault (p0: kotlin.Int): kotlin.String declared in <root>.testDefault' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null reflectionTarget=null
   FUN name:testVararg visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testVararg (): kotlin.String declared in <root>'
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.String>): kotlin.String declared in <root>' type=kotlin.String origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null
-            FUN name:fnWithVarargs visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.String
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:fnWithVarargs visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.String
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun fnWithVarargs (p0: kotlin.Int): kotlin.String declared in <root>.testVararg'
                   CALL 'public final fun fnWithVarargs (vararg xs: kotlin.Int): kotlin.String declared in <root>' type=kotlin.String origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.testVararg.fnWithVarargs' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun fnWithVarargs (p0: kotlin.Int): kotlin.String declared in <root>.testVararg' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null
+            FUNCTION_REFERENCE 'local final fun fnWithVarargs (p0: kotlin.Int): kotlin.String declared in <root>.testVararg' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null reflectionTarget=null
   FUN name:testCoercionToUnit visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testCoercionToUnit (): kotlin.Unit declared in <root>'
         CALL 'public final fun coerceToUnit (fn: kotlin.Function1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
-            FUN name:fnWithDefault visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:fnWithDefault visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                   CALL 'public final fun fnWithDefault (a: kotlin.Int, b: kotlin.Int): kotlin.String declared in <root>' type=kotlin.String origin=null
                     a: GET_VAR 'p0: kotlin.Int declared in <root>.testCoercionToUnit.fnWithDefault' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun fnWithDefault (p0: kotlin.Int): kotlin.Unit declared in <root>.testCoercionToUnit' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+            FUNCTION_REFERENCE 'local final fun fnWithDefault (p0: kotlin.Int): kotlin.Unit declared in <root>.testCoercionToUnit' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
   FUN name:testImportedObjectMember visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testImportedObjectMember (): kotlin.String declared in <root>'
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.String>): kotlin.String declared in <root>' type=kotlin.String origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null
-            FUN name:importedObjectMemberWithVarargs visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.String
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:importedObjectMemberWithVarargs visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.String
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun importedObjectMemberWithVarargs (p0: kotlin.Int): kotlin.String declared in <root>.testImportedObjectMember'
                   CALL 'public final fun importedObjectMemberWithVarargs (vararg xs: kotlin.Int): kotlin.String declared in <root>.Host' type=kotlin.String origin=null
                     $this: GET_OBJECT 'CLASS OBJECT name:Host modality:FINAL visibility:public superTypes:[kotlin.Any]' type=<root>.Host
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.testImportedObjectMember.importedObjectMemberWithVarargs' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun importedObjectMemberWithVarargs (p0: kotlin.Int): kotlin.String declared in <root>.testImportedObjectMember' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null
+            FUNCTION_REFERENCE 'local final fun importedObjectMemberWithVarargs (p0: kotlin.Int): kotlin.String declared in <root>.testImportedObjectMember' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.String> origin=null reflectionTarget=null

compiler/testData/ir/irText/expressions/callableReferences/withArgumentAdaptationAndReceiver.fir.txt

@@ -21,32 +21,32 @@ FILE fqName:<root> fileName:/withArgumentAdaptationAndReceiver.kt
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>
     FUN name:testBoundReceiverLocalVal visibility:public modality:FINAL <> ($this:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
         VAR name:h type:<root>.Host [val]
           CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Host' type=<root>.Host origin=null
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>
     FUN name:testBoundReceiverLocalVar visibility:public modality:FINAL <> ($this:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
         VAR name:h type:<root>.Host [var]
           CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Host' type=<root>.Host origin=null
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>
     FUN name:testBoundReceiverParameter visibility:public modality:FINAL <> ($this:<root>.Host, h:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       VALUE_PARAMETER name:h index:0 type:<root>.Host
       BLOCK_BODY
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>
     FUN name:testBoundReceiverExpression visibility:public modality:FINAL <> ($this:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
-          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null
+          FUNCTION_REFERENCE 'public final fun withVararg (xs: kotlin.IntArray): kotlin.String declared in <root>.Host' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.String> origin=null reflectionTarget=<same>
     FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any

compiler/testData/ir/irText/expressions/callableReferences/withArgumentAdaptationAndReceiver.txt

@@ -22,15 +22,15 @@ FILE fqName:<root> fileName:/withArgumentAdaptationAndReceiver.kt
       BLOCK_BODY
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
-            FUN name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                   CALL 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.String declared in <root>.Host' type=kotlin.String origin=null
                     $this: GET_VAR '<this>: <root>.Host declared in <root>.Host.testImplicitThis' type=<root>.Host origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.Host.testImplicitThis.withVararg' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testImplicitThis' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testImplicitThis' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
     FUN name:testBoundReceiverLocalVal visibility:public modality:FINAL <> ($this:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
@@ -38,15 +38,15 @@ FILE fqName:<root> fileName:/withArgumentAdaptationAndReceiver.kt
           CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Host' type=<root>.Host origin=null
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
-            FUN name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                   CALL 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.String declared in <root>.Host' type=kotlin.String origin=null
                     $this: GET_VAR 'val h: <root>.Host [val] declared in <root>.Host.testBoundReceiverLocalVal' type=<root>.Host origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.Host.testBoundReceiverLocalVal.withVararg' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverLocalVal' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverLocalVal' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
     FUN name:testBoundReceiverLocalVar visibility:public modality:FINAL <> ($this:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
@@ -56,30 +56,30 @@ FILE fqName:<root> fileName:/withArgumentAdaptationAndReceiver.kt
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
             VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.Host [val]
               GET_VAR 'var h: <root>.Host [var] declared in <root>.Host.testBoundReceiverLocalVar' type=<root>.Host origin=null
-            FUN name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                   CALL 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.String declared in <root>.Host' type=kotlin.String origin=null
                     $this: GET_VAR 'val tmp_0: <root>.Host [val] declared in <root>.Host.testBoundReceiverLocalVar' type=<root>.Host origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.Host.testBoundReceiverLocalVar.withVararg' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverLocalVar' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverLocalVar' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
     FUN name:testBoundReceiverParameter visibility:public modality:FINAL <> ($this:<root>.Host, h:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       VALUE_PARAMETER name:h index:0 type:<root>.Host
       BLOCK_BODY
         CALL 'public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
-            FUN name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                   CALL 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.String declared in <root>.Host' type=kotlin.String origin=null
                     $this: GET_VAR 'h: <root>.Host declared in <root>.Host.testBoundReceiverParameter' type=<root>.Host origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.Host.testBoundReceiverParameter.withVararg' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverParameter' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverParameter' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
     FUN name:testBoundReceiverExpression visibility:public modality:FINAL <> ($this:<root>.Host) returnType:kotlin.Unit
       $this: VALUE_PARAMETER name:<this> type:<root>.Host
       BLOCK_BODY
@@ -87,15 +87,15 @@ FILE fqName:<root> fileName:/withArgumentAdaptationAndReceiver.kt
           fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
             VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:<root>.Host [val]
               CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.Host' type=<root>.Host origin=null
-            FUN name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            FUN ADAPTER_FOR_CALLABLE_REFERENCE name:withVararg visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
-              VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+              VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
               BLOCK_BODY
                 TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
                   CALL 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.String declared in <root>.Host' type=kotlin.String origin=null
                     $this: GET_VAR 'val tmp_1: <root>.Host [val] declared in <root>.Host.testBoundReceiverExpression' type=<root>.Host origin=null
                     xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                       GET_VAR 'p0: kotlin.Int declared in <root>.Host.testBoundReceiverExpression.withVararg' type=kotlin.Int origin=null
-            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverExpression' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null
+            FUNCTION_REFERENCE 'local final fun withVararg (p0: kotlin.Int): kotlin.Unit declared in <root>.Host.testBoundReceiverExpression' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
     FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
         public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any

compiler/testData/ir/irText/expressions/callableReferences/withVarargViewedAsArray.fir.txt

@@ -59,16 +59,16 @@ FILE fqName:<root> fileName:/withVarargViewedAsArray.kt
   FUN name:testPlainArgs visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/usePlainArgs]>#' type=IrErrorType
-        FUNCTION_REFERENCE 'public final fun sum (args: kotlin.IntArray): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+        FUNCTION_REFERENCE 'public final fun sum (args: kotlin.IntArray): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
   FUN name:testPrimitiveArrayAsVararg visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun usePrimitiveArray (fn: kotlin.Function1<kotlin.IntArray, kotlin.Int>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        fn: FUNCTION_REFERENCE 'public final fun sum (args: kotlin.IntArray): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+        fn: FUNCTION_REFERENCE 'public final fun sum (args: kotlin.IntArray): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
   FUN name:testArrayAsVararg visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/useArray]>#' type=IrErrorType
-        FUNCTION_REFERENCE 'public final fun nsum (args: kotlin.Array<kotlin.Number>): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.Array<kotlin.Number>, kotlin.Int> origin=null
+        FUNCTION_REFERENCE 'public final fun nsum (args: kotlin.Array<kotlin.Number>): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.Array<kotlin.Number>, kotlin.Int> origin=null reflectionTarget=<same>
   FUN name:testArrayAndDefaults visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/useStringArray]>#' type=IrErrorType
-        FUNCTION_REFERENCE 'public final fun zap (b: kotlin.Array<kotlin.String>, k: kotlin.Int): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction2<kotlin.Array<kotlin.String>, kotlin.Int, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun zap (b: kotlin.Array<kotlin.String>, k: kotlin.Int): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction2<kotlin.Array<kotlin.String>, kotlin.Int, kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/callableReferences/withVarargViewedAsArray.txt

@@ -62,33 +62,33 @@ FILE fqName:<root> fileName:/withVarargViewedAsArray.kt
     BLOCK_BODY
       CALL 'public final fun usePlainArgs (fn: kotlin.Function2<kotlin.Int, kotlin.Int, kotlin.Int>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         fn: BLOCK type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.Int> origin=null
-          FUN name:sum visibility:local modality:FINAL <> (p0:kotlin.Int, p1:kotlin.Int) returnType:kotlin.Int
+          FUN ADAPTER_FOR_CALLABLE_REFERENCE name:sum visibility:local modality:FINAL <> (p0:kotlin.Int, p1:kotlin.Int) returnType:kotlin.Int
-            VALUE_PARAMETER name:p0 index:0 type:kotlin.Int
+            VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Int
-            VALUE_PARAMETER name:p1 index:1 type:kotlin.Int
+            VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p1 index:1 type:kotlin.Int
             BLOCK_BODY
               RETURN type=kotlin.Nothing from='local final fun sum (p0: kotlin.Int, p1: kotlin.Int): kotlin.Int declared in <root>.testPlainArgs'
                 CALL 'public final fun sum (vararg args: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.Int origin=null
                   args: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
                     GET_VAR 'p0: kotlin.Int declared in <root>.testPlainArgs.sum' type=kotlin.Int origin=null
                     GET_VAR 'p1: kotlin.Int declared in <root>.testPlainArgs.sum' type=kotlin.Int origin=null
-          FUNCTION_REFERENCE 'local final fun sum (p0: kotlin.Int, p1: kotlin.Int): kotlin.Int declared in <root>.testPlainArgs' type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.Int> origin=null
+          FUNCTION_REFERENCE 'local final fun sum (p0: kotlin.Int, p1: kotlin.Int): kotlin.Int declared in <root>.testPlainArgs' type=kotlin.reflect.KFunction2<kotlin.Int, kotlin.Int, kotlin.Int> origin=null reflectionTarget=null
   FUN name:testPrimitiveArrayAsVararg visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun usePrimitiveArray (fn: kotlin.Function1<kotlin.IntArray, kotlin.Int>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        fn: FUNCTION_REFERENCE 'public final fun sum (vararg args: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+        fn: FUNCTION_REFERENCE 'public final fun sum (vararg args: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
   FUN name:testArrayAsVararg visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun useArray (fn: kotlin.Function1<kotlin.Array<kotlin.Int>, kotlin.Int>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        fn: FUNCTION_REFERENCE 'public final fun nsum (vararg args: kotlin.Number): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.Array<out kotlin.Number>, kotlin.Int> origin=null
+        fn: FUNCTION_REFERENCE 'public final fun nsum (vararg args: kotlin.Number): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.Array<out kotlin.Number>, kotlin.Int> origin=null reflectionTarget=<same>
   FUN name:testArrayAndDefaults visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun useStringArray (fn: kotlin.Function1<kotlin.Array<kotlin.String>, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         fn: BLOCK type=kotlin.reflect.KFunction1<kotlin.Array<out kotlin.String>, kotlin.Unit> origin=null
-          FUN name:zap visibility:local modality:FINAL <> (p0:kotlin.Array<out kotlin.String>) returnType:kotlin.Unit
+          FUN ADAPTER_FOR_CALLABLE_REFERENCE name:zap visibility:local modality:FINAL <> (p0:kotlin.Array<out kotlin.String>) returnType:kotlin.Unit
-            VALUE_PARAMETER name:p0 index:0 type:kotlin.Array<out kotlin.String>
+            VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:kotlin.Array<out kotlin.String>
             BLOCK_BODY
               CALL 'public final fun zap (vararg b: kotlin.String, k: kotlin.Int): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
                 b: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
                   SPREAD_ELEMENT
                     GET_VAR 'p0: kotlin.Array<out kotlin.String> declared in <root>.testArrayAndDefaults.zap' type=kotlin.Array<out kotlin.String> origin=null
-          FUNCTION_REFERENCE 'local final fun zap (p0: kotlin.Array<out kotlin.String>): kotlin.Unit declared in <root>.testArrayAndDefaults' type=kotlin.reflect.KFunction1<kotlin.Array<out kotlin.String>, kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'local final fun zap (p0: kotlin.Array<out kotlin.String>): kotlin.Unit declared in <root>.testArrayAndDefaults' type=kotlin.reflect.KFunction1<kotlin.Array<out kotlin.String>, kotlin.Unit> origin=null reflectionTarget=null

compiler/testData/ir/irText/expressions/funInterface/samConversionOnCallableReference.fir.txt

@@ -0,0 +1,46 @@
+FILE fqName:<root> fileName:/samConversionOnCallableReference.kt
+  CLASS INTERFACE name:KRunnable modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.KRunnable
+    FUN name:run visibility:public modality:ABSTRACT <> ($this:<root>.KRunnable) returnType:kotlin.Unit
+      $this: VALUE_PARAMETER name:<this> type:<root>.KRunnable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [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]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  FUN name:foo0 visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+  FUN name:foo1 visibility:public modality:FINAL <> (xs:kotlin.IntArray) returnType:kotlin.Int
+    VALUE_PARAMETER name:xs index:0 type:kotlin.IntArray
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun foo1 (xs: kotlin.IntArray): kotlin.Int declared in <root>'
+        CONST Int type=kotlin.Int value=1
+  FUN name:use visibility:public modality:FINAL <> (r:<root>.KRunnable) returnType:kotlin.Unit
+    VALUE_PARAMETER name:r index:0 type:<root>.KRunnable
+    BLOCK_BODY
+  FUN name:testSamConstructor visibility:public modality:FINAL <> () returnType:<root>.KRunnable
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun testSamConstructor (): <root>.KRunnable declared in <root>'
+        CALL 'public final fun KRunnable (block: kotlin.Function0<kotlin.Unit>): <root>.KRunnable declared in <root>' type=<root>.KRunnable origin=null
+          block: FUNCTION_REFERENCE 'public final fun foo0 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
+  FUN name:testSamCosntructorOnAdapted visibility:public modality:FINAL <> () returnType:IrErrorType
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun testSamCosntructorOnAdapted (): IrErrorType declared in <root>'
+        ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/KRunnable]>#' type=IrErrorType
+          FUNCTION_REFERENCE 'public final fun foo1 (xs: kotlin.IntArray): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
+  FUN name:testSamConversion visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      CALL 'public final fun use (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
+        r: FUNCTION_REFERENCE 'public final fun foo0 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
+  FUN name:testSamConversionOnAdapted visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use]>#' type=IrErrorType
+        FUNCTION_REFERENCE 'public final fun foo1 (xs: kotlin.IntArray): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/funInterface/samConversionOnCallableReference.kt

@@ -0,0 +1,25 @@
+// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
+fun interface KRunnable {
+    fun run()
+}
+
+fun foo0() {}
+fun foo1(vararg xs: Int): Int = 1
+
+fun use(r: KRunnable) {}
+
+fun testSamConstructor() =
+    KRunnable(::foo0)
+
+// TODO should use an adapter function
+fun testSamCosntructorOnAdapted() =
+    KRunnable(::foo1)
+
+fun testSamConversion() {
+    use(::foo0)
+}
+
+// TODO should use an adapter function
+fun testSamConversionOnAdapted() {
+    use(::foo1)
+}

compiler/testData/ir/irText/expressions/funInterface/samConversionOnCallableReference.txt

@@ -0,0 +1,48 @@
+FILE fqName:<root> fileName:/samConversionOnCallableReference.kt
+  CLASS INTERFACE name:KRunnable modality:ABSTRACT visibility:public [fun] superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.KRunnable
+    FUN name:run visibility:public modality:ABSTRACT <> ($this:<root>.KRunnable) returnType:kotlin.Unit
+      $this: VALUE_PARAMETER name:<this> type:<root>.KRunnable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [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]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  FUN name:foo0 visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+  FUN name:foo1 visibility:public modality:FINAL <> (xs:kotlin.IntArray) returnType:kotlin.Int
+    VALUE_PARAMETER name:xs index:0 type:kotlin.IntArray varargElementType:kotlin.Int [vararg]
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun foo1 (vararg xs: kotlin.Int): kotlin.Int declared in <root>'
+        CONST Int type=kotlin.Int value=1
+  FUN name:use visibility:public modality:FINAL <> (r:<root>.KRunnable) returnType:kotlin.Unit
+    VALUE_PARAMETER name:r index:0 type:<root>.KRunnable
+    BLOCK_BODY
+  FUN name:testSamConstructor visibility:public modality:FINAL <> () returnType:<root>.KRunnable
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun testSamConstructor (): <root>.KRunnable declared in <root>'
+        TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
+          FUNCTION_REFERENCE 'public final fun foo0 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
+  FUN name:testSamCosntructorOnAdapted visibility:public modality:FINAL <> () returnType:<root>.KRunnable
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun testSamCosntructorOnAdapted (): <root>.KRunnable declared in <root>'
+        TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
+          FUNCTION_REFERENCE 'public final fun foo1 (vararg xs: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
+  FUN name:testSamConversion visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      CALL 'public final fun use (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
+        r: TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
+          FUNCTION_REFERENCE 'public final fun foo0 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
+  FUN name:testSamConversionOnAdapted visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      CALL 'public final fun use (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
+        r: TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
+          FUNCTION_REFERENCE 'public final fun foo1 (vararg xs: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/funInterface/samConversionsWithSmartCasts.fir.txt

@@ -110,4 +110,4 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
   FUN name:test9 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun run1 (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        r: FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        r: FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/funInterface/samConversionsWithSmartCasts.txt

@@ -128,4 +128,4 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
     BLOCK_BODY
       CALL 'public final fun run1 (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         r: TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
-          FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/reflectionLiterals.fir.txt

@@ -55,7 +55,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test3 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.reflect.KFunction1<<root>.A, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction1<<root>.A, kotlin.Unit>
       correspondingProperty: PROPERTY name:test3 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -64,7 +64,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test4 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test4 type:kotlin.reflect.KFunction0<<root>.A> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public constructor <init> () [primary] declared in <root>.A' type=kotlin.reflect.KFunction0<<root>.A> origin=null
+        FUNCTION_REFERENCE 'public constructor <init> () [primary] declared in <root>.A' type=kotlin.reflect.KFunction0<<root>.A> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test4> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<<root>.A>
       correspondingProperty: PROPERTY name:test4 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -73,7 +73,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test5 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test5 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test5> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test5 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -82,7 +82,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test6 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test6 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun bar (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun bar (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test6> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test6 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/reflectionLiterals.txt

@@ -54,7 +54,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test3 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.reflect.KFunction1<<root>.A, kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A, kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction1<<root>.A, kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction1<<root>.A, kotlin.Unit>
       correspondingProperty: PROPERTY name:test3 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -63,7 +63,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test4 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test4 type:kotlin.reflect.KFunction0<<root>.A> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public constructor <init> () [primary] declared in <root>.A' type=kotlin.reflect.KFunction0<<root>.A> origin=null
+        FUNCTION_REFERENCE 'public constructor <init> () [primary] declared in <root>.A' type=kotlin.reflect.KFunction0<<root>.A> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test4> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<<root>.A>
       correspondingProperty: PROPERTY name:test4 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -72,7 +72,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test5 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test5 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>.A' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
           $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.A' type=<root>.A origin=null
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test5> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test5 visibility:public modality:FINAL [val]
@@ -82,7 +82,7 @@ FILE fqName:<root> fileName:/reflectionLiterals.kt
   PROPERTY name:test6 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test6 type:kotlin.reflect.KFunction0<kotlin.Unit> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public final fun bar (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        FUNCTION_REFERENCE 'public final fun bar (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test6> visibility:public modality:FINAL <> () returnType:kotlin.reflect.KFunction0<kotlin.Unit>
       correspondingProperty: PROPERTY name:test6 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/sam/samConstructors.fir.txt

@@ -19,7 +19,7 @@ FILE fqName:<root> fileName:/samConstructors.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test3 (): java.lang.Runnable declared in <root>'
         CALL 'public final fun Runnable (block: kotlin.Function0<kotlin.Unit>): java.lang.Runnable declared in java.lang' type=java.lang.Runnable origin=null
-          block: FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          block: FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test4 visibility:public modality:FINAL <> () returnType:java.util.Comparator<kotlin.Int>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test4 (): java.util.Comparator<kotlin.Int> declared in <root>'

compiler/testData/ir/irText/expressions/sam/samConstructors.txt

@@ -20,7 +20,7 @@ FILE fqName:<root> fileName:/samConstructors.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test3 (): java.lang.Runnable declared in <root>'
         TYPE_OP type=java.lang.Runnable origin=SAM_CONVERSION typeOperand=java.lang.Runnable
-          FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test4 visibility:public modality:FINAL <> () returnType:java.util.Comparator<kotlin.Int>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test4 (): java.util.Comparator<kotlin.Int> declared in <root>'

compiler/testData/ir/irText/expressions/sam/samConversionsWithSmartCasts.fir.txt

@@ -90,4 +90,4 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
     BLOCK_BODY
       CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
-        r: FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        r: FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/sam/samConversionsWithSmartCasts.txt

@@ -115,4 +115,4 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
         $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
         r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/sam/samOperators.fir.txt

@@ -6,29 +6,29 @@ FILE fqName:<root> fileName:/samOperators.kt
     BLOCK_BODY
       CALL 'public open fun get (k: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test1' type=<root>.J origin=null
-        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
       CALL 'public open fun get (k: java.lang.Runnable?, m: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test1' type=<root>.J origin=null
-        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        m: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        m: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test2 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
       CALL 'public open fun set (k: java.lang.Runnable?, v: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
-        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        v: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        v: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
       CALL 'public open fun set (k: java.lang.Runnable?, m: java.lang.Runnable?, v: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
-        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        k: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        m: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        m: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        v: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        v: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test3 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
       CALL 'public open fun plusAssign (i: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=null
-        i: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        i: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
       CALL 'public open fun minusAssign (i: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=null
-        i: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+        i: FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/sam/samOperators.txt

@@ -7,38 +7,38 @@ FILE fqName:<root> fileName:/samOperators.kt
       CALL 'public open fun get (k: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=GET_ARRAY_ELEMENT
         $this: GET_VAR '<this>: <root>.J declared in <root>.test1' type=<root>.J origin=null
         k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
       CALL 'public open fun get (k: java.lang.Runnable?, m: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=GET_ARRAY_ELEMENT
         $this: GET_VAR '<this>: <root>.J declared in <root>.test1' type=<root>.J origin=null
         k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
         m: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test2 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
       CALL 'public open fun set (k: java.lang.Runnable?, v: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=EQ
         $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
         k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
         v: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
       CALL 'public open fun set (k: java.lang.Runnable?, m: java.lang.Runnable?, v: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=EQ
         $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
         k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
         m: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
         v: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test3 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
       CALL 'public open fun plusAssign (i: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=PLUSEQ
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=PLUSEQ
         i: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
       CALL 'public open fun minusAssign (i: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=MINUSEQ
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=MINUSEQ
         i: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null
+          FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/typeAliasConstructorReference.fir.txt

@@ -61,7 +61,7 @@ FILE fqName:<root> fileName:/typeAliasConstructorReference.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.Function1<kotlin.Int, <root>.C> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.C' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.C> origin=null
+        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.C' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.C> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, <root>.C>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -70,7 +70,7 @@ FILE fqName:<root> fileName:/typeAliasConstructorReference.kt
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.Function1<kotlin.Int, <root>.Host.Nested> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.Host.Nested' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Host.Nested> origin=null
+        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.Host.Nested' type=kotlin.reflect.KFunction1<kotlin.Int, <root>.Host.Nested> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, <root>.Host.Nested>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/testData/ir/irText/expressions/typeAliasConstructorReference.txt

@@ -63,7 +63,7 @@ FILE fqName:<root> fileName:/typeAliasConstructorReference.kt
   PROPERTY name:test1 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test1 type:kotlin.Function1<kotlin.Int, <root>.C{ <root>.CA }> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.C' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, <root>.C{ <root>.CA }> origin=null
+        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.C' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, <root>.C{ <root>.CA }> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test1> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, <root>.C{ <root>.CA }>
       correspondingProperty: PROPERTY name:test1 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -72,7 +72,7 @@ FILE fqName:<root> fileName:/typeAliasConstructorReference.kt
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.Function1<kotlin.Int, <root>.Host.Nested{ <root>.NA }> visibility:private [final,static]
       EXPRESSION_BODY
-        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.Host.Nested' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, <root>.Host.Nested{ <root>.NA }> origin=null
+        FUNCTION_REFERENCE 'public constructor <init> (x: kotlin.Int) [primary] declared in <root>.Host.Nested' type=kotlin.reflect.KFunction1<@[ParameterName(name = 'x')] kotlin.Int, <root>.Host.Nested{ <root>.NA }> origin=null reflectionTarget=<same>
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.Function1<kotlin.Int, <root>.Host.Nested{ <root>.NA }>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
       BLOCK_BODY

compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java

@@ -1479,6 +1479,11 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
                 runTest("compiler/testData/ir/irText/expressions/funInterface/partialSam.kt");
             }
 
+            @TestMetadata("samConversionOnCallableReference.kt")
+            public void testSamConversionOnCallableReference() throws Exception {
+                runTest("compiler/testData/ir/irText/expressions/funInterface/samConversionOnCallableReference.kt");
+            }
+
             @TestMetadata("samConversionsWithSmartCasts.kt")
             public void testSamConversionsWithSmartCasts() throws Exception {
                 runTest("compiler/testData/ir/irText/expressions/funInterface/samConversionsWithSmartCasts.kt");

compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinAbiVersion.kt

@@ -22,7 +22,7 @@ fun String.parseKonanAbiVersion(): KotlinAbiVersion {
 
 data class KotlinAbiVersion(val version: Int) {
     companion object {
-        val CURRENT = KotlinAbiVersion(24)
+        val CURRENT = KotlinAbiVersion(25)
     }
 
     override fun toString() = "$version"