Implemented handling of GwtIncompatible annotations. Any class, method or field that has an annotation named GwtIncompatible is ignored by the compiler. Fixes issue 3769. Change-Id: I0f995d107b9e24fb7afb8aca95ab99b35f561216 Review-Link: https://gwt-review.googlesource.com/#/c/2320/ Review by: skybrian@google.com git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11570 8db76d5a-ed1c-0410-87a9-c151d255dfc7