85462a9c08
- Migrated tests to unittest - Reorganized tests by operator - Test coverage for +/- overflow/rollover - Test coverage for null args - Test coverage for unary - - Test coverage for comparison operators BUG= R=justinfagnani@google.com Review URL: https://codereview.chromium.org//19669002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25176 260f80e4-7a28-3924-810f-c04153c831b5