Remove JAnnotation from GWT AST.

It's taking up extra memory and conceptual baggage, and it's making my GwtAstBuilder work more complicated.  Instead, record ArtificialRescues directly during AST constructions and don't keep annotation nodes around.

http://gwt-code-reviews.appspot.com/1420803/


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10024 8db76d5a-ed1c-0410-87a9-c151d255dfc7
28 files changed