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After this cleanup, RegExp no longer have a const constructor. Use 'new RegExp(...)' from now on. BUG= Review URL: https://codereview.chromium.org//11365196 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@14838 260f80e4-7a28-3924-810f-c04153c831b5