Added in a couple of new optimizations:
1) Conditional expressions where the test expression is a boolean literal.
2) Equality tests where both operands are statically null.

Also performed some minor style cleanup.

Review by: mmendez



git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@404 8db76d5a-ed1c-0410-87a9-c151d255dfc7