[Interpreter] Add Ignition statistics JavaScript extension.

src/bootstrapper.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_BOOTSTRAPPER_H_
 #define V8_BOOTSTRAPPER_H_
 
 #include "src/factory.h"
 
 namespace v8 {
@@ skipping 118 matching lines @@
   friend class Isolate;
   friend class NativesExternalStringResource;
 
   explicit Bootstrapper(Isolate* isolate);
 
   static v8::Extension* free_buffer_extension_;
   static v8::Extension* gc_extension_;
   static v8::Extension* externalize_string_extension_;
   static v8::Extension* statistics_extension_;
   static v8::Extension* trigger_failure_extension_;
+  static v8::Extension* ignition_statistics_extension_;
 
   DISALLOW_COPY_AND_ASSIGN(Bootstrapper);
 };
 
 
 class BootstrapperActive final BASE_EMBEDDED {
  public:
   explicit BootstrapperActive(Bootstrapper* bootstrapper)
       : bootstrapper_(bootstrapper) {
     ++bootstrapper_->nesting_;
@@ skipping 20 matching lines @@
 
  private:
   const char* data_;
   size_t length_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BOOTSTRAPPER_H_