Auto merge of #116849 - oli-obk:error_shenanigans, r=cjgillot

Avoid a `track_errors` by bubbling up most errors from `check_well_formed`

I believe `track_errors` is mostly papering over issues that a sufficiently convoluted query graph can hit. I made this change, while the actual change I want to do is to stop bailing out early on errors, and instead use this new `ErrorGuaranteed` to invoke `check_well_formed` for individual items before doing all the `typeck` logic on them.

This works towards resolving https://github.com/rust-lang/rust/issues/97477 and various other ICEs, as well as allowing us to use parallel rustc more (which is currently rather limited/bottlenecked due to the very sequential nature in which we do `rustc_hir_analysis::check_crate`)

cc `@SparrowLii` `@Zoxc` for the new `try_par_for_each_in` function

compiler/rustc_data_structures/src/sync.rs

@@ -54,7 +54,7 @@ pub use worker_local::{Registry, WorkerLocal};
 mod parallel;
 #[cfg(parallel_compiler)]
 pub use parallel::scope;
-pub use parallel::{join, par_for_each_in, par_map, parallel_guard};
+pub use parallel::{join, par_for_each_in, par_map, parallel_guard, try_par_for_each_in};
 
 pub use std::sync::atomic::Ordering;
 pub use std::sync::atomic::Ordering::SeqCst;