[Compiler] Enable use of seperate zones for parsing and compiling.

src/compiler/pipeline.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/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <memory>
 #include <sstream>
 
@@ skipping 533 matching lines @@
 
 }  // namespace
 
 class PipelineCompilationJob final : public CompilationJob {
  public:
   PipelineCompilationJob(Isolate* isolate, Handle<JSFunction> function)
       // Note that the CompilationInfo is not initialized at the time we pass it
       // to the CompilationJob constructor, but it is not dereferenced there.
       : CompilationJob(isolate, &info_, "TurboFan"),
         parse_info_(handle(function->shared())),
+        compile_zone_(isolate->allocator(), ZONE_NAME),
         zone_stats_(isolate->allocator()),
-        info_(&parse_info_, function),
+        info_(&compile_zone_, &parse_info_, function),
         pipeline_statistics_(CreatePipelineStatistics(info(), &zone_stats_)),
         data_(&zone_stats_, info(), pipeline_statistics_.get()),
         pipeline_(&data_),
         linkage_(nullptr) {}
 
  protected:
   Status PrepareJobImpl() final;
   Status ExecuteJobImpl() final;
   Status FinalizeJobImpl() final;
 
  private:
   ParseInfo parse_info_;
+  Zone compile_zone_;
   ZoneStats zone_stats_;
   CompilationInfo info_;
   std::unique_ptr<PipelineStatistics> pipeline_statistics_;
   PipelineData data_;
   PipelineImpl pipeline_;
   Linkage* linkage_;
 
   DISALLOW_COPY_AND_ASSIGN(PipelineCompilationJob);
 };
 
@@ skipping 1435 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8