Auto merge of #5316 - matklad:profile-important-things, r=alexcrichton
authorbors <bors@rust-lang.org>
Sat, 7 Apr 2018 16:44:28 +0000 (16:44 +0000)
committerbors <bors@rust-lang.org>
Sat, 7 Apr 2018 16:44:28 +0000 (16:44 +0000)
Add profiling calls to stuff which is actually slow

So these two functions is what makes no-op build slow, so let's profile them to be able to track regressions better in the future.


Trivial merge