`x.py test` does not always support `--test-args`

[RalfJung]

#72527 added support for --test-args for miri and clippy. But some other tools still do not support this (I am not sure if it would make sense for all of them):

• Linkcheck
• Cargotest
• Cargo
• Rustfmt
• CompiletestTest
• All the Rustdoc ones
• Tidy
• ExpandYamlAnchors
• the book tests
• RustcGuide
• Distcheck

Cc @Mark-Simulacrum

[jyn514]

All the Rustdoc ones

I don't think this is true? x.py test --stage 1 src/test/rustdoc --test-args intra-links works fine for me locally.

[RalfJung]

Maybe I missed the code that implements that.

[jyn514]

I'm going to close this issue, it seems too broad. If you run into a specific tool that isn't respecting --test-args we can open an issue for that.

I do want to refactor all the test code to be consistent at some point; right now we copy paste a bunch of code in various places and it ends up with not all test suites supporting the same arguments. But that's a little different from what you have here.