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(merge: ae796ad 8304b17)
Auto merge of #5132 - Eh2406:less_clones, r=alexcrichton
authorbors <bors@rust-lang.org>
Tue, 6 Mar 2018 19:16:55 +0000 (19:16 +0000)
committerbors <bors@rust-lang.org>
Tue, 6 Mar 2018 19:16:55 +0000 (19:16 +0000)
commitc7219374061c514ecf40d918ba689ea36ee94fbd
tree3762f6d5d46f0ad2346f0eb90118bf0589e8ece5tree | snapshot
parentae796ad84a742ea39a2cb4a0c8adb0def8cee725commit | diff
parent8304b17c87d5943f719a76621a09127c207cc510commit | diff
Auto merge of #5132 - Eh2406:less_clones, r=alexcrichton

don't clone a BacktrackFrame if we are not going to backtrack

I think this is a fix for #5130.

Currently the only recoverable `activate` error does not corrupt `cx`, so this is definitely ok. We should be careful as we add more recoverable `activate` errors that they don't corrupt `cx` to the point where the error messages are affected.
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