Suport polymorphic return and parameter values in RequestFactory.
Issue 5367.
Review at http://gwt-code-reviews.appspot.com/1453811
Patch by: bobv
Review by: rjrjr


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10317 8db76d5a-ed1c-0410-87a9-c151d255dfc7
18 files changed