Named all zones in the project

src/compiler/zone-stats.h

 // 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.
 
 #ifndef V8_COMPILER_ZONE_STATS_H_
 #define V8_COMPILER_ZONE_STATS_H_
 
 #include <map>
 #include <set>
 #include <vector>
 
 #include "src/globals.h"
 #include "src/zone/zone.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 class V8_EXPORT_PRIVATE ZoneStats final {
  public:
   class Scope final {
    public:
-    explicit Scope(ZoneStats* zone_stats)
-        : zone_stats_(zone_stats), zone_(nullptr) {}
+    explicit Scope(ZoneStats* zone_stats, const char* zone_name)
+        : zone_name_(zone_name), zone_stats_(zone_stats), zone_(nullptr) {}
     ~Scope() { Destroy(); }
 
     Zone* zone() {
-      if (zone_ == nullptr) zone_ = zone_stats_->NewEmptyZone();
+      if (zone_ == nullptr) zone_ = zone_stats_->NewEmptyZone(zone_name_);
       return zone_;
     }
     void Destroy() {
       if (zone_ != nullptr) zone_stats_->ReturnZone(zone_);
       zone_ = nullptr;
     }
 
    private:
+    const char* zone_name_;
     ZoneStats* const zone_stats_;
     Zone* zone_;
     DISALLOW_COPY_AND_ASSIGN(Scope);
   };
 
   class V8_EXPORT_PRIVATE StatsScope final {
    public:
     explicit StatsScope(ZoneStats* zone_stats);
     ~StatsScope();
 
@@ skipping 16 matching lines @@
   };
 
   explicit ZoneStats(AccountingAllocator* allocator);
   ~ZoneStats();
 
   size_t GetMaxAllocatedBytes();
   size_t GetTotalAllocatedBytes();
   size_t GetCurrentAllocatedBytes();
 
  private:
-  Zone* NewEmptyZone();
+  Zone* NewEmptyZone(const char* zone_name);
   void ReturnZone(Zone* zone);
 
   static const size_t kMaxUnusedSize = 3;
   typedef std::vector<Zone*> Zones;
   typedef std::vector<StatsScope*> Stats;
 
   Zones zones_;
   Stats stats_;
   size_t max_allocated_bytes_;
   size_t total_deleted_bytes_;
   AccountingAllocator* allocator_;
 
   DISALLOW_COPY_AND_ASSIGN(ZoneStats);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_ZONE_STATS_H_