Remove obsolete instruction HOuterContext.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3313 matching lines @@
   Register result = ToRegister(instr->result());
   if (info()->IsOptimizing()) {
     __ movp(result, Operand(rbp, StandardFrameConstants::kContextOffset));
   } else {
     // If there is no frame, the context must be in rsi.
     ASSERT(result.is(rsi));
   }
 }
 
 
-void LCodeGen::DoOuterContext(LOuterContext* instr) {
-  Register context = ToRegister(instr->context());
-  Register result = ToRegister(instr->result());
-  __ movp(result,
-          Operand(context, Context::SlotOffset(Context::PREVIOUS_INDEX)));
-}
-
-
 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
   ASSERT(ToRegister(instr->context()).is(rsi));
   __ push(rsi);  // The context is the first argument.
   __ Push(instr->hydrogen()->pairs());
   __ Push(Smi::FromInt(instr->hydrogen()->flags()));
   CallRuntime(Runtime::kDeclareGlobals, 3, instr);
 }
 
 
 void LCodeGen::DoGlobalObject(LGlobalObject* instr) {
@@ skipping 2279 matching lines @@
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64