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

src/compiler-dispatcher/compiler-dispatcher-job.cc

 // Copyright 2016 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-dispatcher/compiler-dispatcher-job.h"
 
 #include "src/assert-scope.h"
 #include "src/compilation-info.h"
 #include "src/compiler-dispatcher/compiler-dispatcher-tracer.h"
 #include "src/compiler.h"
@@ skipping 273 matching lines @@
 
 bool CompilerDispatcherJob::PrepareToCompileOnMainThread() {
   DCHECK(ThreadId::Current().Equals(isolate_->thread_id()));
   DCHECK(status() == CompileJobStatus::kReadyToAnalyse);
   COMPILER_DISPATCHER_TRACE_SCOPE(tracer_, kPrepareToCompile);
   if (trace_compiler_dispatcher_jobs_) {
     PrintF("CompilerDispatcherJob[%p]: Preparing to compile\n",
            static_cast<void*>(this));
   }
 
-  compile_info_.reset(
-      new CompilationInfo(parse_info_.get(), Handle<JSFunction>::null()));
+  compile_zone_.reset(new Zone(isolate_->allocator(), ZONE_NAME));
+  compile_info_.reset(new CompilationInfo(
+      compile_zone_.get(), parse_info_.get(), Handle<JSFunction>::null()));
 
   DeferredHandleScope scope(isolate_);
   if (Compiler::Analyze(parse_info_.get())) {
     compile_job_.reset(
         Compiler::PrepareUnoptimizedCompilationJob(compile_info_.get()));
   }
   compile_info_->set_deferred_handles(scope.Detach());
 
   if (!compile_job_.get()) {
     if (!isolate_->has_pending_exception()) isolate_->StackOverflow();
@@ skipping 39 matching lines @@
 
   if (compile_job_->state() == CompilationJob::State::kFailed ||
       !Compiler::FinalizeCompilationJob(compile_job_.release())) {
     if (!isolate_->has_pending_exception()) isolate_->StackOverflow();
     status_ = CompileJobStatus::kFailed;
     return false;
   }
 
   compile_job_.reset();
   compile_info_.reset();
+  compile_zone_.reset();
   handles_from_parsing_.reset();
   parse_info_.reset();
 
   status_ = CompileJobStatus::kDone;
   return true;
 }
 
 void CompilerDispatcherJob::ResetOnMainThread() {
   DCHECK(ThreadId::Current().Equals(isolate_->thread_id()));
 
   if (trace_compiler_dispatcher_jobs_) {
     PrintF("CompilerDispatcherJob[%p]: Resetting\n", static_cast<void*>(this));
   }
 
   compile_job_.reset();
   compile_info_.reset();
+  compile_zone_.reset();
   parser_.reset();
   unicode_cache_.reset();
   character_stream_.reset();
   handles_from_parsing_.reset();
   parse_info_.reset();
 
   if (!source_.is_null()) {
     i::GlobalHandles::Destroy(Handle<Object>::cast(source_).location());
     source_ = Handle<String>::null();
   }
@@ skipping 36 matching lines @@
   return 0.0;
 }
 
 void CompilerDispatcherJob::ShortPrint() {
   DCHECK(ThreadId::Current().Equals(isolate_->thread_id()));
   shared_->ShortPrint();
 }
 
 }  // namespace internal
 }  // namespace v8