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

src/ic/mips64/handler-compiler-mips64.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic.h"
 #include "src/isolate-inl.h"
@@ skipping 149 matching lines @@
 
   NameDictionaryLookupStub::GenerateNegativeLookup(
       masm, miss_label, &done, receiver, properties, name, scratch1);
   __ bind(&done);
   __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1);
 }
 
 
 void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
     MacroAssembler* masm, int index, Register result, Label* miss) {
-  __ LoadNativeContextSlot(index, result);
+  // Check we're still in the same context.
+  const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
+  __ ld(result, MemOperand(cp, offset));
+  __ ld(result, FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
+  __ ld(result, MemOperand(result, Context::SlotOffset(index)));
   // Load its initial map. The global functions all have initial maps.
   __ ld(result,
         FieldMemOperand(result, JSFunction::kPrototypeOrInitialMapOffset));
   // Load the prototype from the initial map.
   __ ld(result, FieldMemOperand(result, Map::kPrototypeOffset));
 }
 
 
 void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(
     MacroAssembler* masm, Register receiver, Register scratch1,
@@ skipping 599 matching lines @@
   // Return the generated code.
   return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64