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

[Vlad Serebrennikov via llvm-commits]

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@@ -178,6 +194,15 @@ function check-targets() {
     cross-project-tests)
       echo "check-cross-project"
     ;;
+    libcxx)
+      echo "check-cxx"
+    ;;
+    libcxxabi)
+      echo "check-cxxabi"
+    ;;
+    libunwind)
+      echo "check-unwind"
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Endilll wrote:

No, because they are not on the list of all projects. You can check for yourself in the build I linked above. It says `./.ci/monolithic-linux.sh "clang;clang;lld;clang-tools-extra;compiler-rt;llvm" "check-all check-clang check-clang-tools" "libcxx;libcxxabi;libunwind" "check-cxx check-cxxabi check-unwind"`

There are definitely other approaches to implementing what I do here, but I tried to stick to the ways script has been structured.

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