Take ReceiverParameterDescriptor in FunctionDescriptorImpl.initialize

Instead of just KotlinType. This will allow to pass annotations on the
receiver at call sites

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

@@ -396,7 +396,7 @@ private fun IrFunction.generateDefaultsFunction(context: CommonBackendContext):
         } + syntheticParameters
 
         descriptor.initialize(
-            /* receiverParameterType         = */ extensionReceiverParameter?.type,
+            /* receiverParameterType         = */ extensionReceiverParameter,
             /* dispatchReceiverParameter     = */ dispatchReceiverParameter,
             /* typeParameters                = */ typeParameters.map {
                 TypeParameterDescriptorImpl.createForFurtherModification(

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

@@ -520,7 +520,7 @@ class LocalDeclarationsLowering(
             val newValueParameters = createTransformedValueParameters(localFunctionContext, capturedValues)
 
             newDescriptor.initialize(
-                oldDescriptor.extensionReceiverParameter?.type,
+                oldDescriptor.extensionReceiverParameter?.copy(newDescriptor),
                 newDispatchReceiverParameter,
                 newTypeParameters,
                 newValueParameters.map { it.descriptor as ValueParameterDescriptor },