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

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

Index: src/ic/mips/handler-compiler-mips.cc
diff --git a/src/ic/mips/handler-compiler-mips.cc b/src/ic/mips/handler-compiler-mips.cc
index ee8a906ff7956c9048fb003b7a8e3dfbaf2963ec..32a37e9d159594978fbaa2c70b07131d1df283ae 100644
--- a/src/ic/mips/handler-compiler-mips.cc
+++ b/src/ic/mips/handler-compiler-mips.cc
@@ -167,10 +167,7 @@ void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup(
 
 void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
     MacroAssembler* masm, int index, Register result, Label* miss) {
-  const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
-  __ lw(result, MemOperand(cp, offset));
-  __ lw(result, FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
-  __ lw(result, MemOperand(result, Context::SlotOffset(index)));
+  __ LoadNativeContextSlot(index, result);
   // Load its initial map. The global functions all have initial maps.
   __ lw(result,
         FieldMemOperand(result, JSFunction::kPrototypeOrInitialMapOffset));