Some deadcode optimizations on JMultiExpressions to remove side-effect free expressions.  Includes an optimization for field references whose only side-effect is a clinit.  This is in anticipation of a change to remove unused parameters.

Patch by: mmastrac
Review by: scottb


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@1479 8db76d5a-ed1c-0410-87a9-c151d255dfc7
3 files changed