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

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

Index: src/ic/arm/handler-compiler-arm.cc
diff --git a/src/ic/arm/handler-compiler-arm.cc b/src/ic/arm/handler-compiler-arm.cc
index a0387f6180a4fb1ea9cd501122f5075d66aa6e6f..2acb96c75ce862820558628f5b3a6faac6588ff8 100644
--- a/src/ic/arm/handler-compiler-arm.cc
+++ b/src/ic/arm/handler-compiler-arm.cc
@@ -171,10 +171,7 @@ void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup(
 
 void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
     MacroAssembler* masm, int index, Register result, Label* miss) {
-  const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
-  __ ldr(result, MemOperand(cp, offset));
-  __ ldr(result, FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
-  __ ldr(result, MemOperand(result, Context::SlotOffset(index)));
+  __ LoadNativeContextSlot(index, result);
   // Load its initial map. The global functions all have initial maps.
   __ ldr(result,
          FieldMemOperand(result, JSFunction::kPrototypeOrInitialMapOffset));