Ensure that a <define-linker> after an <add-linker> will correctly replace the previously-defined implementation.

Patch by: bobv
Review by: scottb

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@5727 8db76d5a-ed1c-0410-87a9-c151d255dfc7
3 files changed