bors 7eef946fc0 Auto merge of #99943 - compiler-errors:tuple-trait, r=jackh726 ... Implement `std::marker::Tuple`, use it in `extern "rust-call"` and `Fn`-family traits Implements rust-lang/compiler-team#537 I made a few opinionated decisions in this implementation, specifically: 1. Enforcing `extern "rust-call"` on fn items during wfcheck, 2. Enforcing this for all functions (not just ones that have bodies), 3. Gating this `Tuple` marker trait behind its own feature, instead of grouping it into (e.g.) `unboxed_closures`. Still needing to be done: 1. Enforce that `extern "rust-call"` `fn`-ptrs are well-formed only if they have 1/2 args and the second one implements `Tuple`. (Doing this would fix ICE in #66696.) 2. Deny all explicit/user `impl`s of the `Tuple` trait, kinda like `Sized`. 3. Fixing `Tuple` trait built-in impl for chalk, so that chalkification tests are un-broken. Open questions: 1. Does this need t-lang or t-libs signoff? Fixes #99820		2022-11-06 17:48:33 +00:00
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traits	Auto merge of #99943 - compiler-errors:tuple-trait, r=jackh726	2022-11-06 17:48:33 +00:00
autoderef.rs	Remove TypeckResults from InferCtxt	2022-10-07 07:06:19 -05:00
errors.rs	Auto merge of #103217 - mejrs:track, r=eholk	2022-11-01 21:09:45 +00:00
infer.rs	Some tracing and comment cleanups	2022-11-04 17:10:07 +00:00
lib.rs	remove cfg(bootstrap)	2022-09-26 10:14:45 +02:00