tree 0e475550210f2acfba002f6d84946d5b7c76ad6c
parent 8fe8a18160571621d0ce24c74b9ff943f8ad4ca3
author Mathias Agopian <mathias@google.com> 1243468918 -0700
committer Mathias Agopian <mathias@google.com> 1243468918 -0700

make sure the Region code disallows constructs like "(a+b)=c;", which is somewhat meaningless.