- Make Boolean 'true' and 'false' singleton VM isolate objects.

vm/object_store.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_STORE_H_
 #define VM_OBJECT_STORE_H_
 
 #include "vm/object.h"
 
 namespace dart {
@@ skipping 424 matching lines @@
   }
   void clear_sticky_error() { sticky_error_ = Error::null(); }
 
   RawString* unhandled_exception_handler() const {
     return unhandled_exception_handler_;
   }
   void set_unhandled_exception_handler(const String& value) {
     unhandled_exception_handler_ = value.raw();
   }
 
-  RawBool* true_value() const { return true_value_; }
-  void set_true_value(const Bool& value) { true_value_ = value.raw(); }
-
-  RawBool* false_value() const { return false_value_; }
-  void set_false_value(const Bool& value) { false_value_ = value.raw(); }
-
   RawContext* empty_context() const { return empty_context_; }
   void set_empty_context(const Context& value) {
     empty_context_ = value.raw();
   }
 
   RawInstance* stack_overflow() const { return stack_overflow_; }
   void set_stack_overflow(const Instance& value) {
     stack_overflow_ = value.raw();
   }
 
@@ skipping 91 matching lines @@
   RawClass* external_uint16_array_class_;
   RawClass* external_int32_array_class_;
   RawClass* external_uint32_array_class_;
   RawClass* external_int64_array_class_;
   RawClass* external_uint64_array_class_;
   RawClass* external_float32_array_class_;
   RawClass* external_float64_array_class_;
   RawClass* stacktrace_class_;
   RawClass* jsregexp_class_;
   RawClass* weak_property_class_;
-  RawBool* true_value_;
-  RawBool* false_value_;
   RawArray* symbol_table_;
   RawArray* canonical_type_arguments_;
   RawLibrary* core_library_;
   RawLibrary* core_impl_library_;
   RawLibrary* collection_library_;
   RawLibrary* math_library_;
   RawLibrary* isolate_library_;
   RawLibrary* mirrors_library_;
   RawLibrary* scalarlist_library_;
   RawLibrary* native_wrappers_library_;
@@ skipping 13 matching lines @@
   RawObject** to() { return reinterpret_cast<RawObject**>(&keyword_symbols_); }
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_