Canonicalize all integer constants taht we create by parsing a string.

runtime/vm/dart_api_impl.cc

 // 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.
 
 #include "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 1333 matching lines @@
   // Slow path for Mints and Bigints.
   DARTSCOPE_NOCHECKS(isolate);
   return Api::NewHandle(isolate, Integer::New(value));
 }
 
 
 DART_EXPORT Dart_Handle Dart_NewIntegerFromHexCString(const char* str) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   const String& str_obj = String::Handle(isolate, String::New(str));
-  return Api::NewHandle(isolate, Integer::New(str_obj));
+  return Api::NewHandle(isolate, Integer::NewCanonical(str_obj));

[srdjan, 2012/11/27 23:32:07]

ditto

[siva, 2012/11/28 00:22:56]

Done.

 }
 
 
 DART_EXPORT Dart_Handle Dart_IntegerToInt64(Dart_Handle integer,
                                             int64_t* value) {
   // Fast path for Smis.
   Isolate* isolate = Isolate::Current();
   CHECK_ISOLATE(isolate);
   if (Api::IsSmi(integer)) {
     *value = Api::SmiValue(integer);
@@ skipping 3134 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success(isolate);
 }
 
 }  // namespace dart