Changes to prepare for allowing script snapshots to be taken after running the main application

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 4328 matching lines @@
 
     // Check if object matches find condition.
     virtual bool FindObject(RawObject* obj) const;
 
    private:
     const uword pc_;
 
     DISALLOW_COPY_AND_ASSIGN(FindRawCodeVisitor);
   };
 
+  static bool IsOptimized(RawCode* code) {
+    return Code::OptimizedBit::decode(code->ptr()->state_bits_);
+  }
+
   static const intptr_t kEntrySize = sizeof(int32_t);  // NOLINT
 
   void set_compile_timestamp(int64_t timestamp) const {
     StoreNonPointer(&raw_ptr()->compile_timestamp_, timestamp);
   }
 
   void set_instructions(RawInstructions* instructions) {
     // RawInstructions are never allocated in New space and hence a
     // store buffer update is not needed here.
     StorePointer(&raw_ptr()->instructions_, instructions);
@@ skipping 3676 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_