Create test suite for test.dart

[peter-ahe-google]

This is from dart/tests/standalone/standalone.status:

TimeoutTest: Skip # Timeout test for testing the test runner.
FailTest: Fail, OK # Fails intentionally

These tests are a minor inconvenience when looking at the output from --report. I'd like to see:

 * 0 tests will be skipped
 * 0 tests are expected to fail that we won't fix

But what I see is:

 * 1 tests will be skipped
 * 1 tests are expected to fail that we won't fix

This is only a minor inconvenience.

[whesse]

This has been fixed by moving TimeoutTest and FailTest into standalone/io/test_runner_test, the test that used them.

Fixed in r8315.

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Added Fixed label.