This commit clarifies some comments, fixes some minor errors in
comments, and adds a state transition diagram.

The build process of the unikernel HermitCore is redesigned and
doesn't longer depend on libhermit.

llvm::Module has a print() method. It is unnecessary to create a
pass just for the purpose of printing LLVM IR.

When refering to or suggesting raw identifiers, refer to them with `r#`.

Fix rust-lang#65634.

In most places, we use a span when emitting `expected...found` errors.
However, there were a couple of places where we didn't use any span,
resulting in hard-to-interpret error messages.

This commit attaches the relevant span to these notes, and additionally
switches over to using `note_expected_found` instead of manually
formatting the message

…tates, r=nikomatsakis

Tweak `ObligationForest` `NodeState`s

These two commits improve comments and function names.

r? @nikomatsakis

remove dependency from libhermit

The build process of the unikernel HermitCore is redesigned and doesn't longer depend on libhermit.

…crichton

Tweak wording of `collect()` on bad target type

Fix rust-lang#60440.

…=kinnison

Less minification

The goal of this PR is to remove the minification process on the `search-index.js` file. It provides great result in term of space reduction but the computation time is far too long. I'll work on this issue and will put it back once it's fast enough.

cc @nox @lqd
r? @kinnison

Standard library support for riscv64gc-unknown-linux-gnu

Add std support for RISC-V 64-bit GNU/Linux and update libc for RISC-V support.

r? @alexcrichton

…r=Dylan-DPC

Clean up error codes

r? @Dylan-DPC

Use Module::print() instead of a PrintModulePass

llvm::Module has a print() method. It is unnecessary to create a pass just for the purpose of printing LLVM IR.

…Gomez

Add long error for E0631 and update ui tests.

This PR adds a long error for `E0631`, which covers errors where closure argument types are mismatched. It also updates UI tests where this error is applicable.

Part of rust-lang#61137

capitalize Rust

Capitalize "Rust" in docs.

Accurately portray raw identifiers in error messages

When refering to or suggesting raw identifiers, refer to them with `r#`.

Fix rust-lang#65634.

…r=Dylan-DPC

Include a span in more `expected...found` notes

In most places, we use a span when emitting `expected...found` errors.
However, there were a couple of places where we didn't use any span,
resulting in hard-to-interpret error messages.

This commit attaches the relevant span to these notes, and additionally
switches over to using `note_expected_found` instead of manually
formatting the message

…s-2, r=Dylan-DPC

cleanup long error explanations

r? @Dylan-DPC

Fix docs for formatting delegations

If you use the example in the docs right now it breaks all the options Formatters have to offer.
i.e. https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=214392ecc6eff73b4789c32568395f72 this should've padded the output with 4 zeros but didn't.

with the new example it does work: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=3bdfb29f395230c5129c5f56dcfcb2a9

The only thing i'm not quite sure about is what's the right way to do it in a loop (altough non of the docs talk about it people are doing it in the wild and there were a couple of attempts to include in libcore)
i.e. https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=4c4dca3c90ba36779ecd014f3899ab9c