Fix a bug from when this was a pointer instead of vector.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50639 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/AST/Expr.h

@@ -1335,8 +1335,7 @@ public:
 
 private:
   // Used by serializer.
-  InitListExpr() : Expr(InitListExprClass, QualType()), 
-                   InitExprs(NULL) {}
+  InitListExpr() : Expr(InitListExprClass, QualType()) {}
 };
 
 /// ObjCStringLiteral, used for Objective-C string literals