263a78d588
1. Test runner library located in client/testing/ 2. Instrumentation code for adding coverage probes Added some fixes to the AST Writer and changes to highlight instrumented nodes. Review URL: http://codereview.chromium.org//8905021 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2549 260f80e4-7a28-3924-810f-c04153c831b5