1. getMock()
2. setExpectedException()
3. checkForUnintentionallyCoveredCode renamed to beStrictAboutCoversAnnotation
4. beStrictAboutTestSize renamed to enforceTimeLimit
5. UnitTestCase class is now fully removed.
We need to be able to capture output when including contributed code as it
may add additional content which makes makes the json we output invalid.
We only warn of these errors if the site is in debugdeveloper, otherwise
we silently drop them.