Add a new method Dart_InvokeConstructor to allow invocation of generative
constructors on an object that has already been allocated using Dart_Allocate.

R=regis@google.com

Review URL: https://codereview.chromium.org//25675009

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@28276 260f80e4-7a28-3924-810f-c04153c831b5
3 files changed