Auto merge of #122997 - matthiaskrgr:compiletest_ices, r=oli-obk

compiletest ice tracking

see https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/where.20to.20mass-add.20known.20ices.20.2F.20merging.20glacier.20into.20rust/near/429082963

This will allow us to sunset most of https://github.com/rust-lang/glacier
The rustc ices will be tracked directly inside the rust testsuite
There are a couple of .sh tests remaining that I have not ported over yet.

This adds `tests/crashes`, a file inside this directory MUST ice, otherwise it is considered test-fail.
This will be used to track ICEs from glacier and the bugtracker.
When someones pr accidentally fixes one of these ICEs, they can move the test from `crashes` into `ui` for example.

I also added a new tidy lint that warns when a test inside `tests/crashes` does not have a `//@ known-bug: ` line

the env var `COMPILETEST_VERBOSE_CRASHES` can be set to get exit code, stderr and stdout of a crash-test to aid debugging/adding tests.
tree: a1e8f7435fa6ed4ced69b1b5831b3a2508b6cd75
  1. .github/
  2. .reuse/
  3. compiler/
  4. library/
  5. LICENSES/
  6. src/
  7. tests/
  8. .editorconfig
  9. .git-blame-ignore-revs
  10. .gitattributes
  11. .gitignore
  12. .gitmodules
  13. .mailmap
  14. Cargo.lock
  15. Cargo.toml
  16. CODE_OF_CONDUCT.md
  17. config.example.toml
  18. configure
  19. CONTRIBUTING.md
  20. COPYRIGHT
  21. INSTALL.md
  22. LICENSE-APACHE
  23. LICENSE-MIT
  24. README.md
  25. RELEASES.md
  26. rust-bors.toml
  27. rustfmt.toml
  28. triagebot.toml
  29. x
  30. x.ps1
  31. x.py
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