Fixes issue #1536: nullifies the return type of methods declared to return a type that has been determined to be globally uninstantiable.

Review by: mmastrac, mmendez


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@1531 8db76d5a-ed1c-0410-87a9-c151d255dfc7
1 file changed