Convert manual GWTTestCase tests into automatic tests.
- Adds ability to test scenarios for testing 'failability' of GWTTestCases.
- Adds a separate GWTTestCaseSetupTearDownTest for testing setup and teardown in GWTTestCase.
- Test cases failing due to limitations of GWTTestCase are suppressed by prefixing name with '_suppressed_'.
- A few minor misc cleanups in other test suites.

Change-Id: I294e350d401d8dda1dfcadd0c4252076734e2111
Review-Link: https://gwt-review.googlesource.com/#/c/1480/

Review by: skybrian@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11433 8db76d5a-ed1c-0410-87a9-c151d255dfc7
12 files changed