Inline functions that use arguments object in f.apply(o, arguments) pattern.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 5f5a201d27abdced41cd442bb956b58836239d93..e3dbe48f3c3926004f60a6499f7970e757de4b09 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -177,7 +177,8 @@ class LCodeGen;
   V(ForInPrepareMap)                            \
   V(ForInCacheArray)                            \
   V(CheckMapValue)                              \
-  V(LoadFieldByIndex)
+  V(LoadFieldByIndex)                           \
+  V(WrapReceiver)
 
 
 #define DECLARE_CONCRETE_INSTRUCTION(type, mnemonic)              \
@@ -468,6 +469,20 @@ class LControlInstruction: public LTemplateInstruction<0, I, T> {
 };
 
 
+class LWrapReceiver: public LTemplateInstruction<1, 2, 0> {
+ public:
+  LWrapReceiver(LOperand* receiver, LOperand* function) {
+    inputs_[0] = receiver;
+    inputs_[1] = function;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(WrapReceiver, "wrap-receiver")
+
+  LOperand* receiver() { return inputs_[0]; }
+  LOperand* function() { return inputs_[1]; }
+};
+
+
 class LApplyArguments: public LTemplateInstruction<1, 4, 0> {
  public:
   LApplyArguments(LOperand* function,