Instantiate instead of erasing binder when probing param methods #108843
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…rs-method-probe, r=jackh726 Instantiate instead of erasing binder when probing param methods Fixes rust-lang#108836 There is a really old comment saying that a `WhereClauseCandidate` probe candidate "should not contain any inference variables", but I'm not really confident that that comment applies anymore. In contrast, other candidates that we assemble during method probe contain inference variables in their substitutions (e.g. `InherentImplCandidate`)... Since this change is made only to support a nightly feature, I'm happy to gate the new behavior behind this feature flag or discuss it further. r? types
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…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#108843 (Instantiate instead of erasing binder when probing param methods) - rust-lang#109985 (Add little `is_test_crate` function) - rust-lang#110028 (Migrate `rustc_hir_analysis` to session diagnostic [Part 3]) - rust-lang#110095 (Migrate remainder of rustc_ty_utils to `SessionDiagnostic`) - rust-lang#110108 (Add renaming of ignore-git to changelog) - rust-lang#110114 (compiletest: Give a better error message if `node` isn't installed) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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Fixes #108836
There is a really old comment saying that a
WhereClauseCandidateprobe candidate "should not contain any inference variables", but I'm not really confident that that comment applies anymore. In contrast, other candidates that we assemble during method probe contain inference variables in their substitutions (e.g.InherentImplCandidate)...Since this change is made only to support a nightly feature, I'm happy to gate the new behavior behind this feature flag or discuss it further.
r? types