Moved zones and zone related stuff in its own directory.

src/compiler/type-cache.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_TYPE_CACHE_H_
 #define V8_COMPILER_TYPE_CACHE_H_
 
 #include "src/compiler/types.h"
 #include "src/date.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 class TypeCache final {
  private:
   // This has to be first for the initialization magic to work.
-  base::AccountingAllocator allocator;
+  AccountingAllocator allocator;
   Zone zone_;
 
  public:
   static TypeCache const& Get();
 
   TypeCache() : zone_(&allocator) {}
 
   Type* const kInt8 = CreateRange<int8_t>();
   Type* const kUint8 = CreateRange<uint8_t>();
   Type* const kUint8Clamped = kUint8;
@@ skipping 119 matching lines @@
   }
 
   Zone* zone() { return &zone_; }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_TYPE_CACHE_H_