Auto merge of #132666 - dingxiangfei2009:skip-if-let-rescope-lint, r=compiler-errors

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Skip `if-let-rescope` lint unless requested by migration

Tracked by #124085
Related to https://github.com/rust-lang/rust/pull/131984#issuecomment-2448329667

Given that `if-let-rescope` is a lint to be enabled globally by an edition migration, there is no point in extracting the precise lint level on the HIR expression. This mitigates the performance regression discovered by the earlier perf-run.

cc `@Kobzol` `@rylev` `@traviscross` I propose a `rust-timer` run to measure how much performance that we can recover from the mitigation. 🙇

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bors 2025-01-23 23:16:06 +00:00

parent 2466c214ca aed7df0dd4

commit b4c71e7222

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