Make tuple constructors real const fns
Mir construction special cases `Ctor(...)` to be lowered as `Ctor { 0: ... }`, which means this doesn't come up much in practice, but it seems inconsistent not to allow this.
r? @oli-obk
This is by no means exhaustive, but I noticed a few grammatical errors
when reading the documentation, and decided just to push these.
Some standard rules/guidelines I followed:
* Do not split infinitives, ie "not to move" instead of "to not move"
* Do not use "since" when you want to say "because" or "as" - the word
"since" has a temporal meaning
In addition:
* Fix a small typo: "Similarily" should be "Similarly"
* Delete double-spaces after full stop
syntax: Keep token span as a part of `Token`
In the world with proc macros and edition hygiene `Token` without a span is not self-contained.
In practice this means that tokens and spans are always stored and passed somewhere along with each other.
This PR combines them into a single struct by doing the next renaming/replacement:
- `Token` -> `TokenKind`
- `TokenAndSpan` -> `Token`
- `(Token, Span)` -> `Token`
Some later commits (fb6e2fe8fd and 1cdee86940) remove duplicate spans in `token::Ident` and `token::Lifetime`.
Those spans were supposed to be identical to token spans, but could easily go out of sync, as was noticed in https://github.com/rust-lang/rust/pull/60965#discussion_r285398523.
The `(Token, Span)` -> `Token` change is a soft pre-requisite for this de-duplication since it allows to avoid some larger churn (passing spans to most of functions classifying identifiers).
Make visitors iterate
r? @oli-obk
The second commit is not completely equivalent, unsure if the code is wrong or not. Tests pass though, otherwise we would need to iterate in the opposite direction as it happened in other parts of the code.
Change visit api
r? @oli-obk
In the [first commit](37386d366a) of this PR, I'm changing `visit_place` to be the function that traverses the `Place` and have only that responsibility. Then there are two other functions `visit_place_base` and `visit_projection` which are the ones in charge of visiting the base and the projection. Visitor implementors can implement any of those.
In the [second commit](e786f631b8) we can already see some things that confuses me, which I think this division will make more clear. The old code, first checked if the place was a base, did something with it and then called `super_place` [here](e786f631b8 (diff-d583e4efe1a72516e274158e53223633L678)). `super_place` checks again if it's a base [here](https://github.com/rust-lang/rust/blob/master/src/librustc/mir/visit.rs#L679-L684) and in case is a local, visits the local and stuff like that. That's not very obvious on the code, and if I'm not wrong it's not needed. In this PR or we have [this](e786f631b8 (diff-d583e4efe1a72516e274158e53223633R673)) as I did or we can just do `- => self.super_place_base(...)` and that will be obvious that I'm letting the default implementation process the base.
The purpose of distcheck is to test `./x.py test` from a tarball, not to
test that all assertions pass all the time. These assertions are largely
just redundant with other builders, so skip the assertions for now and
save a good chunk of time on CI.
cc #61185
This shaves of 50 minutes of cycle time on Azure and will likely also
save a significant chunk of time on Travis. The assertions here aren't
really buying us much over other builders with assertions already
enabled, so let's disable them for this builder.
cc #61185
rustbuild: Include `rustfmt` in deduplicated dependencies
Currently `rustfmt` is excluded from the "don't build dependencies
twice" check but it's currently building dependencies twice! Namely big
dependencies like `rustc-ap-syntax` are built once for rustfmt and once
for the RLS. This commit includes `rustfmt` in these checks and then
fixes the resulting feature mismatches for winapi.
librustc_errors: Rename AnnotateRs -> AnnotateSnippet
The proper name of the library is `annotate-snippet`, not `annotate-rs`,
this PR should get rid of any confusing `AnnotateRs` names.
1. Renames `annotate_rs_emitter.rs` to
`annotate_snippet_emitter_writer.rs` so that the difference between the
`Emitter` trait and the implementers is more clear.
2. Renames `AnnotateRsEmitterWriter` to `AnnotateSnippetEmitterWriter`
3. Renames `HumanReadableErrorType::AnnotateRs` to `HumanReadableErrorType::AnnotateSnippet`
