PPC: Remove usages of Heap::NewSpaceStart and its external reference

src/crankshaft/ppc/lithium-ppc.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.
 
 #include "src/crankshaft/ppc/lithium-ppc.h"
 
 #include <sstream>
 
 #include "src/crankshaft/hydrogen-osr.h"
 #include "src/crankshaft/lithium-inl.h"
@@ skipping 2221 matching lines @@
     LTransitionElementsKind* result =
         new (zone()) LTransitionElementsKind(object, context, NULL);
     return MarkAsCall(result, instr);
   }
 }
 
 
 LInstruction* LChunkBuilder::DoTrapAllocationMemento(
     HTrapAllocationMemento* instr) {
   LOperand* object = UseRegister(instr->object());
-  LOperand* temp = TempRegister();
+  LOperand* temp1 = TempRegister();
+  LOperand* temp2 = TempRegister();
   LTrapAllocationMemento* result =
-      new (zone()) LTrapAllocationMemento(object, temp);
+      new (zone()) LTrapAllocationMemento(object, temp1, temp2);
   return AssignEnvironment(result);
 }
 
 
 LInstruction* LChunkBuilder::DoMaybeGrowElements(HMaybeGrowElements* instr) {
   info()->MarkAsDeferredCalling();
   LOperand* context = UseFixed(instr->context(), cp);
   LOperand* object = Use(instr->object());
   LOperand* elements = Use(instr->elements());
   LOperand* key = UseRegisterOrConstant(instr->key());
@@ skipping 257 matching lines @@
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseTempRegister(instr->index());
   LLoadFieldByIndex* load = new (zone()) LLoadFieldByIndex(object, index);
   LInstruction* result = DefineSameAsFirst(load);
   return AssignPointerMap(result);
 }
 
 }  // namespace internal
 }  // namespace v8