Add an assert for safety check.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76539 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/include/clang/Parse/Parser.h b/include/clang/Parse/Parser.h
index 50145ae530..18f61e793c 100644
--- a/include/clang/Parse/Parser.h
+++ b/include/clang/Parse/Parser.h
@@ -1086,6 +1086,7 @@ private:
       : P(p), SS(ss), EnteredScope(false) {}
 
     void EnterDeclaratorScope() {
+      assert(!EnteredScope && "Already entered the scope!");
       assert(SS.isSet() && "C++ scope was not set!");
       P.Actions.ActOnCXXEnterDeclaratorScope(P.CurScope, SS);
       EnteredScope = true;