From 6a23af0f045785e217a32864d35930eb195efae8 Mon Sep 17 00:00:00 2001
From: Alexander Gorshenev <alexander.gorshenev@jetbrains.com>
Date: Wed, 12 Apr 2017 15:23:47 +0300
Subject: [PATCH] Update extension receivers on deep IR copy.

---
 .../backend/common/DeepCopyIrTreeWithDescriptoros.kt       | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/DeepCopyIrTreeWithDescriptoros.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/DeepCopyIrTreeWithDescriptoros.kt
index b080bdd62b2..a7ea906f904 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/DeepCopyIrTreeWithDescriptoros.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/common/DeepCopyIrTreeWithDescriptoros.kt
@@ -125,6 +125,9 @@ internal class DeepCopyIrTreeWithDescriptors(val targetDescriptor: DeclarationDe
             if (oldDescriptor !is PropertyAccessorDescriptor) {                             // Property accessors are copied along with their property.
                 val newDescriptor = copyFunctionDescriptor(oldDescriptor)
                 descriptorSubstituteMap[oldDescriptor] = newDescriptor
+                oldDescriptor.extensionReceiverParameter?.let{
+                    descriptorSubstituteMap[it] = newDescriptor.extensionReceiverParameter!!
+                }
             }
             super.visitFunction(declaration)
         }
@@ -243,6 +246,10 @@ internal class DeepCopyIrTreeWithDescriptors(val targetDescriptor: DeclarationDe
             oldDescriptor.setter?.let {
                 descriptorSubstituteMap[it] = newDescriptor.setter!!
             }
+            oldDescriptor.extensionReceiverParameter?.let{
+                descriptorSubstituteMap[it] = newDescriptor.extensionReceiverParameter!!
+            }
+
         }
 
         //---------------------------------------------------------------------//