…rError, r=oli-obk

Merge `CompilerError::CompilationFailed` and `CompilerError::ICE`.

`CompilerError` has `CompilationFailed` and `ICE` variants, which seems reasonable at first. But the way it identifies them is flawed:
- If compilation errors out, i.e. `RunCompiler::run` returns an `Err`, it uses `CompilationFailed`, which is reasonable.
- If compilation panics with `FatalError`, it catches the panic and uses `ICE`. This is sometimes right, because ICEs do cause `FatalError` panics, but sometimes wrong, because certain compiler errors also cause `FatalError` panics. (The compiler/rustdoc/clippy/whatever just catches the `FatalError` with `catch_with_exit_code` in `main`.)

In other words, certain non-ICE compilation failures get miscategorized as ICEs. It's not possible to reliably distinguish the two cases, so this commit merges them. It also renames the combined variant as just `Failed`, to better match the existing `Interrupted` and `Skipped` variants.

Here is an example of a non-ICE failure that causes a `FatalError` panic, from `tests/ui/recursion_limit/issue-105700.rs`:
```
 #![recursion_limit="4"]
 #![invalid_attribute]
 #![invalid_attribute]
 #![invalid_attribute]
 #![invalid_attribute]
 #![invalid_attribute]
 //~^ERROR recursion limit reached while expanding

 fn main() {{}}
```

r? `@spastorino`

Rollup of 8 pull requests

Successful merges:

 - rust-lang#120718 (Add "algebraic" fast-math intrinsics, based on fast-math ops that cannot return poison)
 - rust-lang#121195 (unstable-book: Separate testing and production sanitizers)
 - rust-lang#121205 (Merge `CompilerError::CompilationFailed` and `CompilerError::ICE`.)
 - rust-lang#121233 (Move the extra directives for `Mode::CoverageRun` into `iter_header`)
 - rust-lang#121256 (Allow AST and HIR visitors to return `ControlFlow`)
 - rust-lang#121307 (Drive-by `DUMMY_SP` -> `Span` and fmt changes)
 - rust-lang#121310 (Remove an old hack for rustdoc)
 - rust-lang#121311 (Make `is_nonoverlapping` `#[inline]`)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup of 10 pull requests

Successful merges:

 - rust-lang#120716 (Change leak check and suspicious auto trait lint warning messages)
 - rust-lang#121195 (unstable-book: Separate testing and production sanitizers)
 - rust-lang#121205 (Merge `CompilerError::CompilationFailed` and `CompilerError::ICE`.)
 - rust-lang#121233 (Move the extra directives for `Mode::CoverageRun` into `iter_header`)
 - rust-lang#121256 (Allow AST and HIR visitors to return `ControlFlow`)
 - rust-lang#121307 (Drive-by `DUMMY_SP` -> `Span` and fmt changes)
 - rust-lang#121308 (Add regression test for rust-lang#103369)
 - rust-lang#121310 (Remove an old hack for rustdoc)
 - rust-lang#121311 (Make `is_nonoverlapping` `#[inline]`)
 - rust-lang#121319 (return `ty::Error` when equating `ty::Error`)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup merge of rust-lang#121205 - nnethercote:fix-stable-mir-CompilerError, r=oli-obk

Merge `CompilerError::CompilationFailed` and `CompilerError::ICE`.

`CompilerError` has `CompilationFailed` and `ICE` variants, which seems reasonable at first. But the way it identifies them is flawed:
- If compilation errors out, i.e. `RunCompiler::run` returns an `Err`, it uses `CompilationFailed`, which is reasonable.
- If compilation panics with `FatalError`, it catches the panic and uses `ICE`. This is sometimes right, because ICEs do cause `FatalError` panics, but sometimes wrong, because certain compiler errors also cause `FatalError` panics. (The compiler/rustdoc/clippy/whatever just catches the `FatalError` with `catch_with_exit_code` in `main`.)

In other words, certain non-ICE compilation failures get miscategorized as ICEs. It's not possible to reliably distinguish the two cases, so this commit merges them. It also renames the combined variant as just `Failed`, to better match the existing `Interrupted` and `Skipped` variants.

Here is an example of a non-ICE failure that causes a `FatalError` panic, from `tests/ui/recursion_limit/issue-105700.rs`:
```
 #![recursion_limit="4"]
 #![invalid_attribute]
 #![invalid_attribute]
 #![invalid_attribute]
 #![invalid_attribute]
 #![invalid_attribute]
 //~^ERROR recursion limit reached while expanding

 fn main() {{}}
```

r? ``@spastorino``