Gflow framework with some local CFG-based optimizations. Rietveld issues this was reviewed in: http://gwt-code-reviews.appspot.com/112811 http://gwt-code-reviews.appspot.com/117805 http://gwt-code-reviews.appspot.com/130812 http://gwt-code-reviews.appspot.com/130813 http://gwt-code-reviews.appspot.com/130814 http://gwt-code-reviews.appspot.com/132813 http://gwt-code-reviews.appspot.com/132814 http://gwt-code-reviews.appspot.com/153807 http://gwt-code-reviews.appspot.com/154811 Review by: spoon@google.com git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7690 8db76d5a-ed1c-0410-87a9-c151d255dfc7