Introduce per-isolate cache for compile time constants

runtime/vm/object_store.cc

 // Copyright (c) 2013, 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.
 
 #include "vm/object_store.h"
 
 #include "vm/exceptions.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 69 matching lines @@
     error_listeners_(GrowableObjectArray::null()),
     sticky_error_(Error::null()),
     empty_context_(Context::null()),
     stack_overflow_(Instance::null()),
     out_of_memory_(Instance::null()),
     preallocated_unhandled_exception_(UnhandledException::null()),
     preallocated_stack_trace_(Stacktrace::null()),
     lookup_port_handler_(Function::null()),
     empty_uint32_array_(TypedData::null()),
     handle_message_function_(Function::null()),
-    library_load_error_table_(Array::null()) {
+    library_load_error_table_(Array::null()),
+    compile_time_constants_(Array::null()) {
   for (RawObject** current = from(); current <= to(); current++) {
     ASSERT(*current == Object::null());
   }
 }
 
 
 ObjectStore::~ObjectStore() {
 }
 
 
@@ skipping 89 matching lines @@
   cls = async_lib.LookupClass(Symbols::StreamIterator());
   ASSERT(!cls.IsNull());
   set_stream_iterator_class(cls);
 
   const Library& internal_lib = Library::Handle(internal_library());
   cls = internal_lib.LookupClass(Symbols::Symbol());
   set_symbol_class(cls);
 }
 
 }  // namespace dart