It's only valid when applied to a type or lifetime parameter
in `Drop` trait implementation.

Modifies `BikeshedIntrinsicFrom` to forbid lifetime extensions on
references. This static check can be opted out of with the
`Assume::lifetimes` flag.

Fixes rust-lang#129097

…ulacrum

Fix bootstrap test `detect_src_and_out` on Windows

Fixes rust-lang#129188 by making sure it's properly testing the right path for the platform.

…piler-errors

safe transmute: check lifetimes

Modifies `BikeshedIntrinsicFrom` to forbid lifetime extensions on references. This static check can be opted out of with the `Assume::lifetimes` flag.

Fixes rust-lang#129097

Tracking Issue: rust-lang#99571

 r​? `@compiler-errors`

 Fix wrong argument for `get_fn_decl`

Closes rust-lang#129215 (seems to be introduced in rust-lang#129168)

…piler-errors

Check that `#[may_dangle]` is properly applied

It's only valid when applied to a type or lifetime parameter in `Drop` trait implementation.

Tracking issue: rust-lang#34761
cc rust-lang#34761 (comment)

Fix a typo in `rustc_hir` doc comment

Fix a typo in a comment.

…-panic, r=michaelwoerister

Prevent double panic in query system, improve diagnostics

I stumbled upon a double-panic in the query system while working on something else (rust-lang#129102), which hid the real error cause for what I was debugging. This PR remedies that, so unwinding should be able to present more errors. It shouldn't really be relevant for code that doesn't ICE.