Use the getText() from SuggestBox instead of the one present in the TextBoxBase implementation.
http://gwt-code-reviews.appspot.com/132812/show

Patch by: manolo.carrasco
Review by: jlabanca


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7529 8db76d5a-ed1c-0410-87a9-c151d255dfc7