77f4143fa2
In suggest_missing_return_type, erase late bound regions after normalizing Fixes #88360 There might be some hardening that could be done to not error or avoid erroring with LUBing `ReErased` with `ReEmpty`, but this was the most simple fix for this particular case. r? `@nikomatsakis` |
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For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.