Those tests were previously not run because of the missing _test suffix.
Changed the test expectations for type_variable_shadows_class_test until
it is fixed.
Corrected syntax error in optimized_lists.dart and removed invalid
expectation from mint_arithmetic_test.dart.
Added failing tests to the status file with the corresponding issue #.
Split double_to_string_test into two files where one contains all the
ones failing with dart2js.
BUG=dart:643,dart:1533
Review URL: https://codereview.chromium.org//11316108
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15193 260f80e4-7a28-3924-810f-c04153c831b5
fschneider@google.com