PSI2IR: Fix argument adaptation for unbound references

NB front-end "lies".

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

@@ -1379,6 +1379,11 @@ public class Fir2IrTextTestGenerated extends AbstractFir2IrTextTest {
                 runTest("compiler/testData/ir/irText/expressions/callableReferences/typeArguments.kt");
             }
 
+            @TestMetadata("unboundMemberReferenceWithAdaptedArguments.kt")
+            public void testUnboundMemberReferenceWithAdaptedArguments() throws Exception {
+                runTest("compiler/testData/ir/irText/expressions/callableReferences/unboundMemberReferenceWithAdaptedArguments.kt");
+            }
+
             @TestMetadata("withAdaptedArguments.kt")
             public void testWithAdaptedArguments() throws Exception {
                 runTest("compiler/testData/ir/irText/expressions/callableReferences/withAdaptedArguments.kt");

compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/tower/ResolvedAtomCompleter.kt

@@ -38,6 +38,7 @@ import org.jetbrains.kotlin.resolve.calls.tasks.TracingStrategyImpl
 import org.jetbrains.kotlin.resolve.calls.util.CallMaker
 import org.jetbrains.kotlin.resolve.checkers.MissingDependencySupertypeChecker
 import org.jetbrains.kotlin.resolve.deprecation.DeprecationResolver
+import org.jetbrains.kotlin.resolve.scopes.receivers.TransientReceiver
 import org.jetbrains.kotlin.types.*
 import org.jetbrains.kotlin.types.expressions.DoubleColonExpressionResolver
 import org.jetbrains.kotlin.types.expressions.ExpressionTypingServices
@@ -370,6 +371,16 @@ class ResolvedAtomCompleter(
         if (callableReferenceAdaptation == null) return
 
         val callElement = resolvedCall.call.callElement
+        val isUnboundReference = resolvedCall.dispatchReceiver is TransientReceiver
+
+        fun makeFakeValueArgument(callArgument: KotlinCallArgument): ValueArgument {
+            val fakeCallArgument = callArgument as? FakeKotlinCallArgumentForCallableReference
+                ?: throw AssertionError("FakeKotlinCallArgumentForCallableReference expected: $callArgument")
+            return FakePositionalValueArgumentForCallableReferenceImpl(
+                callElement,
+                if (isUnboundReference) fakeCallArgument.index + 1 else fakeCallArgument.index
+            )
+        }
 
         for ((valueParameter, resolvedCallArgument) in callableReferenceAdaptation.mappedArguments) {
             resolvedCall.recordValueArgument(
@@ -378,7 +389,7 @@ class ResolvedAtomCompleter(
                     ResolvedCallArgument.DefaultArgument ->
                         DefaultValueArgument.DEFAULT
                     is ResolvedCallArgument.SimpleArgument -> {
-                        val valueArgument = makeFakeValueArgument(resolvedCallArgument.callArgument, callElement)
+                        val valueArgument = makeFakeValueArgument(resolvedCallArgument.callArgument)
                         if (valueParameter.isVararg)
                             VarargValueArgument(
                                 listOf(
@@ -391,7 +402,7 @@ class ResolvedAtomCompleter(
                     is ResolvedCallArgument.VarargArgument ->
                         VarargValueArgument(
                             resolvedCallArgument.arguments.map {
-                                makeFakeValueArgument(it, callElement)
+                                makeFakeValueArgument(it)
                             }
                         )
                 }
@@ -399,15 +410,6 @@ class ResolvedAtomCompleter(
         }
     }
 
-    private fun makeFakeValueArgument(
-        callArgument: KotlinCallArgument,
-        callElement: KtElement
-    ): ValueArgument {
-        val fakeCallArgument = callArgument as? FakeKotlinCallArgumentForCallableReference
-            ?: throw AssertionError("FakeKotlinCallArgumentForCallableReference expected: $callArgument")
-        return FakePositionalValueArgumentForCallableReferenceImpl(callElement, fakeCallArgument.index)
-    }
-
     private fun completeCollectionLiteralCalls(collectionLiteralArgument: ResolvedCollectionLiteralAtom) {
         val psiCallArgument = collectionLiteralArgument.atom.psiCallArgument as CollectionLiteralKotlinCallArgumentImpl
         val context = psiCallArgument.outerCallContext

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

@@ -38,6 +38,7 @@ import org.jetbrains.kotlin.psi.psiUtil.startOffsetSkippingComments
 import org.jetbrains.kotlin.psi2ir.intermediate.CallBuilder
 import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.resolve.calls.model.*
+import org.jetbrains.kotlin.resolve.scopes.receivers.TransientReceiver
 import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.expressions.DoubleColonLHS
 import org.jetbrains.kotlin.utils.addIfNotNull
@@ -274,6 +275,13 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
             throw AssertionError("Callable reference with adapted arguments expected: ${resolvedCall.call.callElement.text}")
         }
 
+        if (resolvedCall.dispatchReceiver is TransientReceiver) {
+            // Unbound callable reference 'A::foo', receiver is passed as a first parameter
+            val irAdaptedReceiverParameter = irAdapterFun.valueParameters[0]
+            irAdapteeCall.dispatchReceiver =
+                IrGetValueImpl(startOffset, endOffset, irAdaptedReceiverParameter.type, irAdaptedReceiverParameter.symbol)
+        }
+
         for ((valueParameter, valueArgument) in adaptedArguments) {
             val substitutedValueParameter = resolvedCall.resultingDescriptor.valueParameters[valueParameter.index]
             irAdapteeCall.putValueArgument(
@@ -289,8 +297,8 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
         resolvedValueArgument: ResolvedValueArgument,
         irAdapterFun: IrSimpleFunction,
         valueParameter: ValueParameterDescriptor
-    ): IrExpression? =
-        when (resolvedValueArgument) {
+    ): IrExpression? {
+        return when (resolvedValueArgument) {
             is DefaultValueArgument ->
                 null
             is VarargValueArgument ->
@@ -309,8 +317,9 @@ class ReflectionReferencesGenerator(statementGenerator: StatementGenerator) : St
             else ->
                 throw AssertionError("Unexpected ResolvedValueArgument: $resolvedValueArgument")
         }
+    }
 
-    private fun adaptValueArgument(
+    fun adaptValueArgument(
         startOffset: Int,
         endOffset: Int,
         valueArgument: ValueArgument,

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

@@ -0,0 +1,70 @@
+FILE fqName:<root> fileName:/unboundMemberReferenceWithAdaptedArguments.kt
+  FUN name:use1 visibility:public modality:FINAL <> (fn:kotlin.Function2<<root>.A, kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
+    VALUE_PARAMETER name:fn index:0 type:kotlin.Function2<<root>.A, kotlin.Int, kotlin.Unit>
+    BLOCK_BODY
+  FUN name:use2 visibility:public modality:FINAL <> (fn:kotlin.Function1<kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
+    VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.Unit>
+    BLOCK_BODY
+  CLASS CLASS name:A modality:OPEN visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
+    CONSTRUCTOR visibility:public <> () returnType:<root>.A [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:A modality:OPEN visibility:public superTypes:[kotlin.Any]'
+    FUN name:foo visibility:public modality:OPEN <> ($this:<root>.A, xs:kotlin.IntArray) returnType:kotlin.Int
+      $this: VALUE_PARAMETER name:<this> type:<root>.A
+      VALUE_PARAMETER name:xs index:0 type:kotlin.IntArray
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='public open fun foo (xs: kotlin.IntArray): kotlin.Int declared in <root>.A'
+          CONST Int type=kotlin.Int value=1
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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
+  CLASS OBJECT name:Obj modality:FINAL visibility:public superTypes:[<root>.A]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Obj
+    CONSTRUCTOR visibility:private <> () returnType:<root>.Obj [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.A'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS OBJECT name:Obj modality:FINAL visibility:public superTypes:[<root>.A]'
+    FUN name:foo visibility:public modality:FINAL <> ($this:<root>.Obj, xs:kotlin.IntArray) returnType:kotlin.Int
+      $this: VALUE_PARAMETER name:<this> type:<root>.Obj
+      VALUE_PARAMETER name:xs index:0 type:kotlin.IntArray
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='public final fun foo (xs: kotlin.IntArray): kotlin.Int declared in <root>.Obj'
+          CONST Int type=kotlin.Int value=1
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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:testUnbound visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use1]>#' type=IrErrorType
+        FUNCTION_REFERENCE 'public open fun foo (xs: kotlin.IntArray): kotlin.Int declared in <root>.A' type=kotlin.reflect.KFunction2<<root>.A, kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
+  FUN name:testBound visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
+    VALUE_PARAMETER name:a index:0 type:<root>.A
+    BLOCK_BODY
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use2]>#' type=IrErrorType
+        FUNCTION_REFERENCE 'public open fun foo (xs: kotlin.IntArray): kotlin.Int declared in <root>.A' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
+  FUN name:testObject visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): [/use2]>#' type=IrErrorType
+        FUNCTION_REFERENCE 'public final fun foo (xs: kotlin.IntArray): kotlin.Int declared in <root>.Obj' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/callableReferences/unboundMemberReferenceWithAdaptedArguments.kt

@@ -0,0 +1,25 @@
+// !LANGUAGE: +NewInference, +FunctionReferenceWithDefaultValueAsOtherType
+
+fun use1(fn: (A, Int) -> Unit) {}
+
+fun use2(fn: (Int) -> Unit) {}
+
+open class A {
+    open fun foo(vararg xs: Int) = 1
+}
+
+object Obj : A() {
+    override fun foo(vararg xs: Int) = 1
+}
+
+fun testUnbound() {
+    use1(A::foo)
+}
+
+fun testBound(a: A) {
+    use2(a::foo)
+}
+
+fun testObject() {
+    use2(Obj::foo)
+}

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

@@ -0,0 +1,100 @@
+FILE fqName:<root> fileName:/unboundMemberReferenceWithAdaptedArguments.kt
+  FUN name:use1 visibility:public modality:FINAL <> (fn:kotlin.Function2<<root>.A, kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
+    VALUE_PARAMETER name:fn index:0 type:kotlin.Function2<<root>.A, kotlin.Int, kotlin.Unit>
+    BLOCK_BODY
+  FUN name:use2 visibility:public modality:FINAL <> (fn:kotlin.Function1<kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
+    VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.Unit>
+    BLOCK_BODY
+  CLASS CLASS name:A modality:OPEN visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
+    CONSTRUCTOR visibility:public <> () returnType:<root>.A [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:A modality:OPEN visibility:public superTypes:[kotlin.Any]'
+    FUN name:foo visibility:public modality:OPEN <> ($this:<root>.A, xs:kotlin.IntArray) returnType:kotlin.Int
+      $this: VALUE_PARAMETER name:<this> type:<root>.A
+      VALUE_PARAMETER name:xs index:0 type:kotlin.IntArray varargElementType:kotlin.Int [vararg]
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='public open fun foo (vararg xs: kotlin.Int): kotlin.Int declared in <root>.A'
+          CONST Int type=kotlin.Int value=1
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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
+  CLASS OBJECT name:Obj modality:FINAL visibility:public superTypes:[<root>.A]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Obj
+    CONSTRUCTOR visibility:private <> () returnType:<root>.Obj [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.A'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS OBJECT name:Obj modality:FINAL visibility:public superTypes:[<root>.A]'
+    FUN name:foo visibility:public modality:OPEN <> ($this:<root>.Obj, xs:kotlin.IntArray) returnType:kotlin.Int
+      overridden:
+        public open fun foo (vararg xs: kotlin.Int): kotlin.Int declared in <root>.A
+      $this: VALUE_PARAMETER name:<this> type:<root>.Obj
+      VALUE_PARAMETER name:xs index:0 type:kotlin.IntArray varargElementType:kotlin.Int [vararg]
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='public open fun foo (vararg xs: kotlin.Int): kotlin.Int declared in <root>.Obj'
+          CONST Int type=kotlin.Int value=1
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in <root>.A
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in <root>.A
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in <root>.A
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  FUN name:testUnbound visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      CALL 'public final fun use1 (fn: kotlin.Function2<<root>.A, kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
+        fn: BLOCK type=kotlin.reflect.KFunction2<<root>.A, kotlin.Int, kotlin.Unit> origin=null
+          FUN ADAPTER_FOR_CALLABLE_REFERENCE name:foo visibility:local modality:FINAL <> (p0:<root>.A, p1:kotlin.Int) returnType:kotlin.Unit
+            VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p0 index:0 type:<root>.A
+            VALUE_PARAMETER ADAPTER_PARAMETER_FOR_CALLABLE_REFERENCE name:p1 index:1 type:kotlin.Int
+            BLOCK_BODY
+              TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
+                CALL 'public open fun foo (vararg xs: kotlin.Int): kotlin.Int declared in <root>.A' type=kotlin.Int origin=null
+                  $this: GET_VAR 'p0: <root>.A declared in <root>.testUnbound.foo' type=<root>.A origin=null
+                  xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
+                    GET_VAR 'p1: kotlin.Int declared in <root>.testUnbound.foo' type=kotlin.Int origin=null
+          FUNCTION_REFERENCE 'local final fun foo (p0: <root>.A, p1: kotlin.Int): kotlin.Unit declared in <root>.testUnbound' type=kotlin.reflect.KFunction2<<root>.A, kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
+  FUN name:testBound visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
+    VALUE_PARAMETER name:a index:0 type:<root>.A
+    BLOCK_BODY
+      CALL 'public final fun use2 (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 ADAPTER_FOR_CALLABLE_REFERENCE name:foo visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            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 open fun foo (vararg xs: kotlin.Int): kotlin.Int declared in <root>.A' type=kotlin.Int origin=null
+                  $this: GET_VAR 'a: <root>.A declared in <root>.testBound' type=<root>.A origin=null
+                  xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
+                    GET_VAR 'p0: kotlin.Int declared in <root>.testBound.foo' type=kotlin.Int origin=null
+          FUNCTION_REFERENCE 'local final fun foo (p0: kotlin.Int): kotlin.Unit declared in <root>.testBound' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null
+  FUN name:testObject visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      CALL 'public final fun use2 (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 ADAPTER_FOR_CALLABLE_REFERENCE name:foo visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit
+            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 open fun foo (vararg xs: kotlin.Int): kotlin.Int declared in <root>.Obj' type=kotlin.Int origin=null
+                  $this: GET_OBJECT 'CLASS OBJECT name:Obj modality:FINAL visibility:public superTypes:[<root>.A]' type=<root>.Obj
+                  xs: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
+                    GET_VAR 'p0: kotlin.Int declared in <root>.testObject.foo' type=kotlin.Int origin=null
+          FUNCTION_REFERENCE 'local final fun foo (p0: kotlin.Int): kotlin.Unit declared in <root>.testObject' type=kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit> origin=null reflectionTarget=null

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

@@ -1378,6 +1378,11 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
                 runTest("compiler/testData/ir/irText/expressions/callableReferences/typeArguments.kt");
             }
 
+            @TestMetadata("unboundMemberReferenceWithAdaptedArguments.kt")
+            public void testUnboundMemberReferenceWithAdaptedArguments() throws Exception {
+                runTest("compiler/testData/ir/irText/expressions/callableReferences/unboundMemberReferenceWithAdaptedArguments.kt");
+            }
+
             @TestMetadata("withAdaptedArguments.kt")
             public void testWithAdaptedArguments() throws Exception {
                 runTest("compiler/testData/ir/irText/expressions/callableReferences/withAdaptedArguments.kt");