Change throw of String to throw of ArgumentError. See https://code.google.com/p/dart/issues/detail?id=9913
Change throw of String to throw of ArgumentError.
See https://code.google.com/p/dart/issues/detail?id=9913

R=nweiz@google.com

Review URL: https://codereview.chromium.org//20591002

git-svn-id: b889c0189f1adfea19efba192a3d7a5b889e4120@25511 260f80e4-7a28-3924-810f-c04153c831b5

d2m/test,iglherme/Guttiest,d2m/test,kevmoo/test,grouma/test,kevmoo/test,d2m/test,apwilson/test,Pacane/test,iglherme/Guttiest,apwilson/test,kevmoo/test,grouma/test,Pacane/test,greglittlefield-wf/test,iglherme/Guttiest,greglittlefield-wf/test,greglittlefield-wf/test,grouma/test,apwilson/test