[clang] [llvm] [clang][ci] Move libc++ testing into the main PR pipeline (PR #93318)

[Vlad Serebrennikov via llvm-commits]

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@@ -231,6 +245,10 @@ linux_projects_to_test=$(exclude-linux $(compute-projects-to-test ${modified_pro
 linux_check_targets=$(check-targets ${linux_projects_to_test} | sort | uniq)
 linux_projects=$(add-dependencies ${linux_projects_to_test} | sort | uniq)
 
+linux_runtimes_to_test=$(compute-runtimes-to-test ${linux_projects_to_test})
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Endilll wrote:

I believe this line does what it's supposed to do. Runtimes are tested here not for their sake, but as an additional testing for Clang.

So, if you make a change in LLVM, it's clear that Clang might be affected, so it needs to be tested. Runtimes are acting as an extension of `clang/test`.

https://github.com/llvm/llvm-project/pull/93318