It's unused.

When encountering a local binding with a type that isn't completed, the
parser will reach a `=` token. When this happen, consider the type
"complete" as far as the parser is concerned to avoid further errors
being emitted by parse recovery logic.

Fixes some missing punctuation, and adds a blank line
for a more concise summary.

This now reuses `fn discriminant_ty` in project, removing
some code duplication. Doing so made me realize that
we previously had a disagreement about the discriminant
type of generators, with MIR using `u32` and codegen and
trait selection using `i32`.

We now always use `u32`.

This avoids copying a new `Providers` struct for each downstream crate
that wants to use it.

RISC-V GNU/Linux as host platform

This PR add a new builder named `dist-riscv64-linux` that builds the compiler toolchain for RISC-V 64-bit GNU/Linux.

r? @alexcrichton

…an-DPC

Clean up E0715 explanation

r? @Dylan-DPC

…an-DPC

Clean up E0716 explanation

r? @Dylan-DPC

…Mark-Simulacrum

Remove `Compiler::compile()`.

It's unused.

r? @Mark-Simulacrum

…entors, r=Manishearth

Add option to collapse automatically implementors

Fixes rust-lang#73403

It adds an option (enabled by default) which collapses all implementors impl blocks.

r? @kinnison
cc @rust-lang/rustdoc

…m-margin, r=Dylan-DPC

Add margin after doc search results

I found it not really on computer that the last result is right at the bottom of the page. I find it better with margin below (especially when you hover the last element!). A screenshot to show the result:

![Screenshot from 2020-07-10 16-32-23](https://user-images.githubusercontent.com/3050060/87166097-6103a580-c2cb-11ea-81a8-12772cf20f64.png)

r? @kinnison
cc @rust-lang/rustdoc @Manishearth @jyn514

improve DiscriminantKind handling

Adds a lang item `discriminant_type` for the associated type `DiscriminantKind::Discriminant`.

Changes the discriminant of generators from `i32` to `u32`, which should not be observable to fix an
oversight where MIR was using `u32` and codegen and typeck used `i32`.

Added docs for `From<c_int>` for `ExitStatus`

Partially addresses rust-lang#51430

Update cross-compilation README

README seemed rather out of date. I hope the information in my PR is now correct (it was more or less assembled by asking in zulip and learning-by-doing).

Handle case of incomplete local ty more gracefully

When encountering a local binding with a type that isn't completed, the
parser will reach a `=` token. When this happen, consider the type
"complete" as far as the parser is concerned to avoid further errors
being emitted by parse recovery logic.

Remove string comparison and use diagnostic item instead

r? @eddyb

…u, r=eddyb

Initialize default providers only once

This avoids copying a new `Providers` struct for each downstream crate
that wants to use it.

Follow-up to rust-lang#74283 without the perf hit.

r? @eddyb

…jonas-schievink

Edit docs for rustc_middle::dep_graph::dep_node

Fixes some missing punctuation, and adds a blank line for a more concise summary.

…mulacrum

Add a 1.45 release note on lto vs. embed-bitcode

I added a bullet for Cargo's use of `embed-bitcode`, since that was even noteworthy enough for the Inside Rust blog. Then more importantly, I added a compatibility note for how this may interact poorly with manually enabling LTO.

r? @Mark-Simulacrum