ICE locations display regressed

[matthiaskrgr]

we now have this weird /rustc-dev/${HASH}/ prefix:

previously

error: internal compiler error: compiler/rustc_middle/src/ty/instance.rs:579:21: failed to resolve instance for <fn(FooImpl, ()) as FooFn>::bar
  --> /tmp/crash.rs:12:5
   |
12 |     fn bar(&self);
   |     ^^^^^^^^^^^^^^


thread 'rustc' (2638476) panicked at compiler/rustc_middle/src/ty/instance.rs:579:21:
Box<dyn Any>
stack backtrace:

since #150110 (cc @Urgau )

error: internal compiler error: /rustc-dev/806c2a35dcc1db7867864fea0a7a65554a5238b7/compiler/rustc_middle/src/ty/instance.rs:579:21: failed to resolve instance for <fn(FooImpl, ()) as FooFn>::bar
  --> 139120.rs:12:5
   |
12 |     fn bar(&self);
   |     ^^^^^^^^^^^^^^


thread 'rustc' (2634180) panicked at /rustc-dev/806c2a35dcc1db7867864fea0a7a65554a5238b7/compiler/rustc_middle/src/ty/instance.rs:579:21:
Box<dyn Any>
stack backtrace:

[Urgau]

This is expected, with #150110 we now consistently remaps the prefix for all the paths (including the panic ones) with our prefix /rustc/... (it's enabled locally by setting rust.remap-debuginfo = true in bootstrap.toml).

[matthiaskrgr]

Looks like the prefix is all over the place:
thread 'rustc' (2457831) panicked at /checkout/compiler/rustc_type_ir/src/relate.rs:572:13:

thread 'rustc' (2458025) panicked at /rustc-dev/24139cf844095e574708faf406034dc78cb39143/compiler/rustc_trait_selection/src/traits/project.rs:604:23:

thread 'rustc' (2458321) panicked at /rust/deps/ena-0.14.3/src/snapshot_vec.rs:199:10:

[Urgau]

thread 'rustc' (2457831) panicked at /checkout/compiler/rustc_type_ir/src/relate.rs:572:13:

This one shouldn't have existed and should have been fixed by #150283.

The other three are the expected prefix, /rustc/SHA for std sources, /rustc-dev/SHA for compiler sources and /rust/deps for the crates.io dependency sources.