rust/compiler
Matthias Krüger 6dc365003b
Rollup merge of #111573 - compiler-errors:erase-re-error, r=WaffleLapkin
Erase `ReError` properly

Fixes #111341

Since we check whether a type has free regions before erasing (to short circuit unnecesary folding), we need to consider `ReError` as a free region, or else we'll skip it when erasing a type that only mentions `ReError`.

cc `@nnethercote`
2023-05-16 20:12:17 +02:00
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