Merge up to 8597 to experimental/gc from the bleeding edge.

src/builtins.cc

Index: src/builtins.cc
===================================================================
--- src/builtins.cc	(revision 8618)
+++ src/builtins.cc	(working copy)
@@ -1362,6 +1362,9 @@
   KeyedLoadIC::GenerateIndexedInterceptor(masm);
 }
 
+static void Generate_KeyedLoadIC_NonStrictArguments(MacroAssembler* masm) {
+  KeyedLoadIC::GenerateNonStrictArguments(masm);
+}
 
 static void Generate_StoreIC_Initialize(MacroAssembler* masm) {
   StoreIC::GenerateInitialize(masm);
@@ -1452,6 +1455,9 @@
   KeyedStoreIC::GenerateInitialize(masm);
 }
 
+static void Generate_KeyedStoreIC_NonStrictArguments(MacroAssembler* masm) {
+  KeyedStoreIC::GenerateNonStrictArguments(masm);
+}
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 static void Generate_LoadIC_DebugBreak(MacroAssembler* masm) {