Fix legacy symbol mangling of closures #135493
Merged
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When this code was written, there was no
type_of
implementation for closures. That has long since been changed.In the UI test:
We tried to walk up the def path tree for the closure, from closure -> anon const -> trait. When we reached the trait, we tried to call
type_of
on it which obviously doesn't do the right thing and ICEs.Fixes #135418