Tighten abstract types with only one concrete implementation.
 - Narrow fields, casts, and instanceof  when there is only one concrete implementation of the type
 - Replace polymorphic invocations of abstract methods in a base class with references to the final method defined in a single concrete class
 - Change the return types of (native) methods from abstract types to single concrete types

Patch by: bobv
Review by: scottb


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@1532 8db76d5a-ed1c-0410-87a9-c151d255dfc7
1 file changed