Add tests for uncaught exceptions from methods called through the Java Bridge

If a method called on a Java object through the Java Bridge throws an uncaught
exception, we throw a JavaScript exception.

See WebKit change https://android-git.corp.google.com/g/184252

Bug: 6386557
Change-Id: I35c456c162fd9b2a078ee9fce1ea68404b4c829c