Fix off-by-one error.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50815 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/Expr.cpp

@@ -1369,7 +1369,7 @@ Stmt::child_iterator InitListExpr::child_begin() {
   return reinterpret_cast<Stmt**>(&InitExprs[0]);
 }
 Stmt::child_iterator InitListExpr::child_end() {
-  return reinterpret_cast<Stmt**>(&InitExprs[getNumInits()]);
+  return reinterpret_cast<Stmt**>(&InitExprs[getNumInits()-1]);
 }
 
 // ObjCStringLiteral