gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//libcxx/docs/Status/FormatPaper.csv",
    "//libcxx/include/CMakeLists.txt",
    "//libcxx/include/__chrono/convert_to_tm.h",
    "//libcxx/include/__chrono/formatter.h",
    "//libcxx/include/__chrono/local_info.h",
    "//libcxx/include/__chrono/ostream.h",
    "//libcxx/include/chrono",
    "//libcxx/include/libcxx.imp",
    "//libcxx/include/module.modulemap",
    "//libcxx/modules/std/chrono.inc",
    "//libcxx/test/libcxx/time/time.zone/time.zone.info/time.zone.info.local/ostream.pass.cpp",
    "//libcxx/test/std/time/time.syn/formatter.local_info.pass.cpp",
    "//libcxx/test/std/time/time.zone/time.zone.info/time.zone.info.local/local_info,members.pass.cpp",
    "//libcxx/test/std/time/time.zone/time.zone.info/time.zone.info.local/ostream.pass.cpp",
    "//libcxx/test/std/utilities/format/format.formattable/concept.formattable.compile.pass.cpp",
    "//llvm/lib/Target/AMDGPU/AMDGPUInsertSingleUseVDST.cpp",
    "//llvm/test/CodeGen/AMDGPU/insert-singleuse-vdst.mir",
    "//llvm/utils/gn/secondary/libcxx/include/BUILD.gn"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file