Revert the "don't leak" part of r207065, looks like the bots don't like it :-/
http://bb.pgr.jp/builders/cmake-clang-x86_64-linux/builds/22506


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@207070 91177308-0d34-0410-b5e6-96231b3b80d8