Another case of HadMultipleCandidates being used uninitialized.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141532 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 48a48d0..7cfbd9e 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -274,7 +274,8 @@
     if (InstantiationDependent)
       setInstantiationDependent(true);
   }
-      
+  DeclRefExprBits.HadMultipleCandidates = 0;
+
   computeDependence();
 }