[runtime] Replace global object link with native context link in all contexts.

src/ic/ia32/handler-compiler-ia32.cc

Index: src/ic/ia32/handler-compiler-ia32.cc
diff --git a/src/ic/ia32/handler-compiler-ia32.cc b/src/ic/ia32/handler-compiler-ia32.cc
index 0318b6a9063264b8ae3a1fc1a9e1cc5a3bc3124d..b34c8925fe2fc30f4ce7732bcc4af8874e7d34e0 100644
--- a/src/ic/ia32/handler-compiler-ia32.cc
+++ b/src/ic/ia32/handler-compiler-ia32.cc
@@ -114,10 +114,7 @@ void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup(
 
 void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
     MacroAssembler* masm, int index, Register result, Label* miss) {
-  const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
-  __ mov(result, Operand(esi, offset));
-  __ mov(result, FieldOperand(result, JSGlobalObject::kNativeContextOffset));
-  __ mov(result, Operand(result, Context::SlotOffset(index)));
+  __ LoadGlobalFunction(index, result);
   // Load its initial map. The global functions all have initial maps.
   __ mov(result,
          FieldOperand(result, JSFunction::kPrototypeOrInitialMapOffset));