Fix late template parsing leak with incremental processing

Add a second late template parser callback meant to cleanup any
resources allocated by late template parsing.  Call it from the
Sema::ActOnEndOfTranslationUnit method after all pending template
instantiations have been completed.  Teach Parser::ParseTopLevelDecl to
install the cleanup callback when incremental processing is enabled so
that Parser::TemplateIds can be freed.

Patch by Brad King!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@219810 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index aae2008957..70e4eaab8e 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -672,6 +672,9 @@ void Sema::ActOnEndOfTranslationUnit() {
     }
     PerformPendingInstantiations();
 
+    if (LateTemplateParserCleanup)
+      LateTemplateParserCleanup(OpaqueParser);
+
     CheckDelayedMemberExceptionSpecs();
   }