Rollup merge of #134474 - oli-obk:push-yomnkntvzlxw, r=compiler-errors

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Forbid overwriting types in typeck

While trying to figure out some type setting logic in https://github.com/rust-lang/rust/pull/134248 I realized that we sometimes set a type twice. While hopefully that would have been the same type, we didn't ensure that at all and just silently accepted it. So now we reject setting it twice, unless errors are happening, then we don't care.

Best reviewed commit by commit.

No behaviour change is intended.

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许杰友 Jieyou Xu (Joe) 2024-12-19 16:48:10 +08:00 committed by GitHub

parent 5305b0255b 9321f7efa9

commit 505ab3885b

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GPG key ID: B5690EEEBB952194

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