This commit is for Bugzilla 334834.

The compiler is generating a message
"dres.continueAt’ may be used uninitialized in this function".

Setting dres.continueAT to zero since this is an error case
and we should not be continuing.



git-svn-id: svn://svn.valgrind.org/vex@2915 8f6e269a-dfd6-0310-a8e1-e2731360e62c