Migrate `TyCtxt::predicates_of` and `ParamEnv::caller_bounds` to `Clause`
The last big change in the series.
I will follow-up with additional filed issues once this PR lands:
- [ ] Investigate making `TypeFoldable<TyCtxt<'tcx>> for ty::Clause<'tcx>` implementation less weird: 2efe091705/compiler/rustc_middle/src/ty/structural_impls.rs (L672)
- [ ] Clean up the elaborator since it should only be emitting child clauses, not predicates
- [ ] Rename identifiers like `pred` and `predicates` to `clause` if they're actually clauses around the codebase
- [ ] Validate that all of the `ToPredicate` impls are acutally still needed, or prune them if they're not
r? `@ghost` until the other branch lands
`hir`: Add `Become` expression kind (explicit tail calls experiment)
This adds `hir::ExprKind::Become` alongside ast lowering. During hir-thir lowering we currently lower `become` as `return`, so that we can partially test `become` without ICEing.
cc `@scottmcm`
r? `@Nilstrieb`
For non-incremental builds on Unix, currently all the thread names look
like `opt regex.f10ba03eb5ec7975-cgu.0`. But they are truncated by
`pthread_setname` to `opt regex.f10ba`, hiding the numeric suffix that
distinguishes them. This is really annoying when using a profiler like
Samply.
This commit changes these thread names to a form like `opt cgu.0`, which
is much better.
Currently there are two problems.
First, the CGUS don't end up in size order. The merging loop does sort
by size on each iteration, but we don't sort after the final merge, so
typically there is one CGU out of place. (And sometimes we don't enter
the merging loop at all, in which case they end up in random order.)
Second, we then assign names that differ only by a numeric suffix, and
then we sort them lexicographically by name, giving us an order like
this:
regex.f10ba03eb5ec7975-cgu.1
regex.f10ba03eb5ec7975-cgu.10
regex.f10ba03eb5ec7975-cgu.11
regex.f10ba03eb5ec7975-cgu.12
regex.f10ba03eb5ec7975-cgu.13
regex.f10ba03eb5ec7975-cgu.14
regex.f10ba03eb5ec7975-cgu.15
regex.f10ba03eb5ec7975-cgu.2
regex.f10ba03eb5ec7975-cgu.3
regex.f10ba03eb5ec7975-cgu.4
regex.f10ba03eb5ec7975-cgu.5
regex.f10ba03eb5ec7975-cgu.6
regex.f10ba03eb5ec7975-cgu.7
regex.f10ba03eb5ec7975-cgu.8
regex.f10ba03eb5ec7975-cgu.9
These two problems are really annoying when debugging and profiling the
CGUs.
This commit ensures CGUs are sorted by name *and* reverse sorted by
size. This involves (a) one extra sort by size operation, and (b)
padding the numeric indices with zeroes, e.g.
`regex.f10ba03eb5ec7975-cgu.01`.
(Note that none of this applies for incremental builds, where a
different hash-based CGU naming scheme is used.)
Revert "Structurally resolve correctly in check_pat_lit"
This reverts commit 54fb5a48b9. Also adds a couple of tests, and downgrades the existing `-Ztrait-solver=next` test to a known-bug.
Fixes#112993
Add translatable diagnostic for cannot be reexported error
also added for subdiagnostics
Add translatable diagnostics for resolve_glob_import errors
Add translatable diag for unable to determine import resolution
Add translatable diag for is not directly importable
[-Ztrait-solver=next, mir-typeck] instantiate hidden types in the root universe
Fixes an ICE in the test `member-constraints-in-root-universe`.
Main motivation is to make #112691 pass under the new solver.
r? ``@compiler-errors``
Fix return type notation associated type suggestion when -Zlower-impl-trait-in-trait-to-assoc-ty
This avoid suggesting the associated types generated for RPITITs when the one the code refers to doesn't exist and rustc looks for a suggestion.
r? `@compiler-errors`
Fix return type notation errors with -Zlower-impl-trait-in-trait-to-assoc-ty
This just adjust the way we check for RPITITs and uses the new helper method to do the "old" and "new" check at once.
r? `@compiler-errors`
Don't emit same goal as input during `wf::unnormalized_obligations`
r? `@aliemjay` cc `@lcnr`
I accidentally pruned the logic to handle `WF(?0)` when writing `wf::unnormalized_obligations`.
idk if you wanted to construct a test first, but this is an obvious fix. Copied the comment from above.
Fixesrust-lang/trait-system-refactor-initiative#36
