From b9e677fef4748ffef2cd0b5a8a56a90a4b3c076b Mon Sep 17 00:00:00 2001
From: Denis Zharkov <denis.zharkov@jetbrains.com>
Date: Mon, 8 Feb 2016 19:30:01 +0300
Subject: [PATCH] Get rid of redundant Map copy

---
 .../kotlin/resolve/calls/model/ResolvedCallImpl.java  | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/model/ResolvedCallImpl.java b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/model/ResolvedCallImpl.java
index 73d3d2e1aa4..ecfde15fc81 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/model/ResolvedCallImpl.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/model/ResolvedCallImpl.java
@@ -41,10 +41,7 @@ import org.jetbrains.kotlin.types.KotlinType;
 import org.jetbrains.kotlin.types.TypeProjection;
 import org.jetbrains.kotlin.types.TypeSubstitutor;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 import static org.jetbrains.kotlin.resolve.calls.results.ResolutionStatus.INCOMPLETE_TYPE_INFERENCE;
 import static org.jetbrains.kotlin.resolve.calls.results.ResolutionStatus.UNKNOWN_STATUS;
@@ -213,9 +210,11 @@ public class ResolvedCallImpl<D extends CallableDescriptor> implements MutableRe
             valueArguments.put(substitutedVersion, entry.getValue());
         }
 
-        Map<ValueArgument, ArgumentMatchImpl> originalArgumentToParameterMap = Maps.newLinkedHashMap(argumentToParameterMap);
+        Collection<Map.Entry<ValueArgument, ArgumentMatchImpl>> unsubstitutedArgumentMappings =
+                new SmartList<Map.Entry<ValueArgument, ArgumentMatchImpl>>(argumentToParameterMap.entrySet());
+
         argumentToParameterMap.clear();
-        for (Map.Entry<ValueArgument, ArgumentMatchImpl> entry : originalArgumentToParameterMap.entrySet()) {
+        for (Map.Entry<ValueArgument, ArgumentMatchImpl> entry : unsubstitutedArgumentMappings) {
             ArgumentMatchImpl argumentMatch = entry.getValue();
             ValueParameterDescriptor valueParameterDescriptor = argumentMatch.getValueParameter();
             ValueParameterDescriptor substitutedVersion = substitutedParametersMap.get(valueParameterDescriptor.getOriginal());