Signed-off-by: Brian Cain <bcain@quicinc.com>

On LLVM 18 we get slightly different arguments here, so it's easier to
just regex those away. The important details are all still asserted as I
understand things.

Fixes rust-lang#119193.

@rustbot label: +llvm-main

…, r=petrochenkov

Add support for hexagon-unknown-none-elf as target

Still TODO: document usage details for new target

…, r=compiler-errors

Rid the AST & HIR pretty printer of cruft

Found while working on rust-lang#119163.

For `trait Trait: ?Sized {}` (semantically malformed), we currently output `trait Trait for ? Sized {}` (sic!) / `trait Trait for ? Sized { }` (sic!) if `-Zunpretty=expanded` / `-Zunpretty=hir` is passed.

`trait Tr for Sized? {}` (rust-lang#15521) and later also `trait Tr for ?Sized {}` (I guess, rust-lang#20194) is former Rust syntax. Hence I'm removing these outdated branches.

~~This will conflict with rust-lang#119163, therefore marking this PR as blocked.~~ Rebased

…n-nightly, r=tmandry

Run fuchsia tests only on nightly

We discovered in rust-lang#119187 that the Fuchsia tests only work on nightly, and so we cannot have the `x86_64-gnu-integration` job run on beta and stable. This PR gates the job to only run in the nightly channel.

r? `@tmandry`

…rk-Simulacrum

tests: fix overaligned-constant to not over-specify getelementptr instr

On LLVM 18 we get slightly different arguments here, so it's easier to just regex those away. The important details are all still asserted as I understand things.

Fixes rust-lang#119193.

`@rustbot` label: +llvm-main

Emits error if has bound regions

Fixes rust-lang#119209