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improve linking in the "Auxilirary builds" section of directive index

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5
src/doc/rustc-dev-guide/src/tests/directives.md
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@ -52,6 +52,8 @@ not be exhaustive. Directives can generally be found by browsing the
### Auxiliary builds
See [Building auxiliary crates](compiletest.html#building-auxiliary-crates)
| Directive | Explanation | Supported test suites | Possible values |
|-----------------------|-------------------------------------------------------------------------------------------------------|-----------------------|-----------------------------------------------|
| `aux-bin` | Build a aux binary, made available in `auxiliary/bin` relative to test directory | All except `run-make` | Path to auxiliary `.rs` file |
@ -61,8 +63,7 @@ not be exhaustive. Directives can generally be found by browsing the
| `proc-macro` | Similar to `aux-build`, but for aux forces host and don't use `-Cprefer-dynamic`[^pm]. | All except `run-make` | Path to auxiliary proc-macro `.rs` file |
| `build-aux-docs` | Build docs for auxiliaries as well. Note that this only works with `aux-build`, not `aux-crate`. | All except `run-make` | N/A |
[^pm]: please see the Auxiliary proc-macro section in the
[compiletest](./compiletest.md) chapter for specifics.
[^pm]: please see the [Auxiliary proc-macro section](compiletest.html#auxiliary-proc-macro) in the compiletest chapter for specifics.
### Controlling outcome expectations