[turbofan] use ZonePool in most places in the compiler pipeline a temp zone is used.

src/compiler/instruction-selector.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/compiler/instruction-selector.h"
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/pipeline.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-InstructionSelector::InstructionSelector(Linkage* linkage,
+InstructionSelector::InstructionSelector(Zone* local_zone, Linkage* linkage,
                                          InstructionSequence* sequence,
                                          Schedule* schedule,
                                          SourcePositionTable* source_positions,
                                          Features features)
-    : zone_(sequence->isolate()),
+    : zone_(local_zone),
       linkage_(linkage),
       sequence_(sequence),
       source_positions_(source_positions),
       features_(features),
       schedule_(schedule),
       current_block_(NULL),
       instructions_(zone()),
       defined_(sequence->node_count(), false, zone()),
       used_(sequence->node_count(), false, zone()) {}
 
@@ skipping 1007 matching lines @@
 void InstructionSelector::VisitBranch(Node* branch, BasicBlock* tbranch,
                                       BasicBlock* fbranch) {
   UNIMPLEMENTED();
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8