Give scope a SEHTryScope bit, set that in ParseSEHTry(), and let Sema
walk the scope chain to find the SEHTry parent on __leave statements.
(They are rare enough that it seems better to do the walk instead of
giving Scope a SEHTryParent pointer -- this is similar to AtCatchScope.)
llvm-svn: 212422
We wouldn't transform the compound statement in any of these forms,
causing crashes when it got time to act on them. Additionally, we
wouldn't check to see if the handler was invalid before deciding whether
or not we should continue acting on the __try.
This fixes PR17584.
llvm-svn: 192682
Reid Kleckner