Re-apply the AutoBean JSO lazy reification patch.
Change type-detection and fast serialization path in JsoSplittable to work
around browser variations.
http://gwt-code-reviews.appspot.com/1407802/
Patch by: bobv
Review by: rice, cromwellian


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9964 8db76d5a-ed1c-0410-87a9-c151d255dfc7