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Auto merge of #133321 - compiler-errors:const-checker, r=wesleywiser

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Get rid of HIR const checker

As far as I can tell, the HIR const checker was implemented in https://github.com/rust-lang/rust/pull/66170 because we were not able to issue useful const error messages in the MIR const checker.

This seems to have changed in the last 5 years, probably due to work like #90532. I've tweaked the diagnostics slightly and think the error messages have gotten *better* in fact.

Thus I think the HIR const checker has reached the end of its usefulness, and we can retire it.

cc `@RalfJung`
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bors 2024-12-03 04:39:48 +00:00
commit efdd9e8020
38 changed files with 151 additions and 604 deletions
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compiler/rustc_passes/messages.ftl
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@ -709,8 +709,6 @@ passes_should_be_applied_to_trait =
attribute should be applied to a trait
.label = not a trait
passes_skipping_const_checks = skipping const checks
passes_stability_promotable =
attribute cannot be applied to an expression