Added option for TryCatches to not capture the message object on

Added option for TryCatches to not capture the message object on
exceptions.

It turned out that the stack overflow fix from before had disabled
message storing in another test.  Previously, stack overflows would
actually cause a message object to start being created but cause
another exception which would not be reported and that's what stopped
the infinite regress.  This change resores that behavior.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@259 ce2b1a6d-e550-0410-aec6-3dcde31c8c00