This implements the `Linker::{link_whole_staticlib,link_whole_rlib}`
methods for the `WasmLd` linker used on wasm targets. Previously these
methods were noops since I think historically `wasm-ld` did not have
support for `--whole-archive` but nowadays it does, so the flags are
passed through.

Corresponding subsection in async book is not `07.05` not `07.06`.

The information on the linked page is the same so it may be reasonable to remove the whole sentence.

Fixes rust-lang#102576

This allows retrying binding TCP Socket multiple times. This is useful
when using emulators as network might not be available in the beginning.
This was orignally implemented in rust-lang#100316

Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>

Do not point at whole statement, only at the expression (skip pointing at `;`)

… `Future::Output`

No longer lint against `#[must_use] async fn foo()`.

When encountering a statement that awaits on a `Future`, check if the
`Future`'s parent item is annotated with `#[must_use]` and emit a lint
if so. This effectively makes `must_use` an annotation on the
`Future::Output` instead of only the `Future` itself.

Fix rust-lang#78149.

… r=tmandry

Consider `#[must_use]` annotation on `async fn` as also affecting the `Future::Output`

No longer lint against `#[must_use] async fn foo()`.

When encountering a statement that awaits on a `Future`, check if the
`Future`'s parent item is annotated with `#[must_use]` and emit a lint
if so. This effectively makes `must_use` an annotation on the
`Future::Output` instead of only the `Future` itself.

Fix rust-lang#78149.

…ve, r=estebank

Implement the `+whole-archive` modifier for `wasm-ld`

This implements the `Linker::{link_whole_staticlib,link_whole_rlib}` methods for the `WasmLd` linker used on wasm targets. Previously these methods were noops since I think historically `wasm-ld` did not have support for `--whole-archive` but nowadays it does, so the flags are passed through.

`#[test]`: Point at return type if `Termination` bound is unsatisfied

Together with rust-lang#103142 (already merged) this fully fixes rust-lang#50291.

I don't consider my current solution of changing a few spans “here and there” very clean since the
failed obligation is a `FunctionArgumentObligation` and we point at a type instead of a function argument.

If you agree with me on this point, I can offer to keep the spans of the existing nodes and instead inject
`let _: AssertRetTyIsTermination<$ret_ty>;` (type to be defined in `libtest`) similar to `AssertParamIsEq` etc.
used by some built-in derive-macros.

I haven't tried that approach yet though and cannot promise that it would actually work out or
be “cleaner” for that matter.

``@rustbot`` label A-libtest A-diagnostics
r? ``@estebank``

…-parentheses, r=estebank

Fix unused lint and parser caring about spaces to won't produce invalid code

Fixes rust-lang#103435

…tebank

Suggest calling the instance method of the same name when method not found

Fixes rust-lang#103474

Fix broken link in description of error code E0706

Corresponding subsection in async book is `07.05` not `07.06`.

The information on the linked page is the same so it may be reasonable to remove the whole sentence.

prevent uninitialized access in black_box for zero-sized-types

Don't read the pointer location in black_box for zero sized types, just emit a memory clobber instead. Addresses  rust-lang#103304 when rust is build against LLVM at HEAD.

Zulip thread: https://rust-lang.zulipchat.com/#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/.28with.20llvm.20at.20HEAD.29.3A.20msan.20error.20in.20core.3A.3Ahint.3A.3Ablack_box

…ble-trait, r=GuillaumeGomez

rustdoc: use javascript to layout notable traits popups

Fixes rust-lang#102576

Preview: https://notriddle.com/notriddle-rustdoc-demos/102576-js-notable-trait/std/iter/trait.Iterator.html#method.step_by

## Before

![image](https://user-images.githubusercontent.com/1593513/200432713-23aa8d49-ba2b-469f-9eab-089e0c174039.png)

## After

![image](https://user-images.githubusercontent.com/1593513/200432735-edd5b53d-e99d-4fc5-9410-8a79e0efdc9d.png)

…n514

Retry binding TCP Socket in remote-test-server

This allows retrying binding TCP Socket multiple times. This is useful when using emulators as network might not be available in the beginning.

This was orignally implemented in rust-lang#100316

Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>