bad1890ab3
This is accomplished by instructing the context manager to remove all contexts and recreate them from scratch. R=scheglov@google.com Review URL: https://codereview.chromium.org//553193002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@40106 260f80e4-7a28-3924-810f-c04153c831b5