Some `is_useful` cleanups - #99843

Merged

bors merged 3 commits into

rust-lang:masterfrom

oli-obk:is_useful_perf

Aug 4, 2022

Commits on Jul 28, 2022

Move constructor into the branch that actually uses it
oli-obk
committed
970ff3d
Don't pass (the rather large) `PatCtxt` by value
oli-obk
committed
544de44
Pass PatCtxt instead of passing MatchCtxt + Ty separately
oli-obk
committed
803d374