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tests: Port `symbol-mangling-hashed` to rmake.rs Part of #121876. This PR supersedes #128567 and is co-authored with `@lolbinarycat.` ### Summary This PR ports `tests/run-make/symbol-mangling-hashed` to rmake.rs. Notable differences when compared to the Makefile version includes: - It's no longer limited to linux + x86_64 only. In particular, this now is exercised on darwin and windows (esp. msvc) too. - The test uses `object` crate to be more precise in the filtering, and avoids relying on parsing the human-readable `nm` output for *some* `nm` in the given environment (which isn't really a thing on msvc anyway, and `llvm-nm` doesn't handle msvc dylibs AFAICT). - Dump the symbols satisfying various criteria on test failure to make it hopefully less of a pain to debug if it ever fails in CI. ### Review advice - Best reviewed commit-by-commit. - I'm not *super* sure about the msvc logic, would benefit from a MSVC (PE/COFF) expert taking a look. --- try-job: x86_64-msvc-1 try-job: i686-msvc-1 try-job: i686-mingw try-job: x86_64-mingw-1 try-job: x86_64-apple-1 try-job: aarch64-apple try-job: test-various
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