add a new Sema::CurFunctionNeedsScopeChecking bool that is used to avoid 
calling into the jump checker when a function or method is known to contain
no VLAs or @try blocks.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69509 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclObjC.cpp b/lib/Sema/SemaDeclObjC.cpp
index 208562f..db81cac 100644
--- a/lib/Sema/SemaDeclObjC.cpp
+++ b/lib/Sema/SemaDeclObjC.cpp
@@ -28,6 +28,8 @@
   if (!MDecl)
     return;
 
+  CurFunctionNeedsScopeChecking = false;
+
   // Allow the rest of sema to find private method decl implementations.
   if (MDecl->isInstanceMethod())
     AddInstanceMethodToGlobalPool(MDecl);