[llvm] r334376 - Revert r334374 [TableGen] Move some shared_ptrs to avoid unnecessary copies (NFC).

[Florian Hahn via llvm-commits]

On 11/06/2018 22:44, David Blaikie wrote:
> Might be best to try one change at a time, if possible - if you can't 
> isolate/debug this locally (though to find the issue locally, the same 
> advice might be helpful).
> 

Thanks, will do. I also have some patches addressing more of your 
comments, I just need some time to test & push them.