Auto merge of #110576 - jyn514:unify-test-args, r=ozkanonur

bootstrap: Unify test argument handling

Fixes #104198. Does *not* help with rust-lang/rust#80124 because I couldn't figure out a reasonable way to omit `--lib` only for `panic_abort` and not other `std` dependencies.

- Remove unnecessary `test_kind` field and `TestKind` struct. These are just subsets of the existing `builder.kind` / `Kind` struct.
- Add a new `run_cargo_test` function which handles passing arguments to cargo based on `builder.config`
- Switch all Steps in `mod test` to `run_cargo_test` where possible
- Combine several steps into one `CrateBootstrap` step. These tests all do the same thing, just with different crate names.
- Fix `x test --no-doc`. This is much simpler after the refactors mentioned earlier, but I'm happy to split it into a separate PR if desired. Before, this would panic a lot because steps forgot to pass `--lib`.

Author: bors