Fixes/supresses warnings in test due to usage of classes with generics.

Change-Id: I48217242b79fb3c8638478f5f30382f361cb3e94
Review-Link: https://gwt-review.googlesource.com/#/c/1491/

Review by: mdempsky@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11434 8db76d5a-ed1c-0410-87a9-c151d255dfc7
42 files changed