gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//libcxx/include/CMakeLists.txt",
    "//libcxx/include/__fwd/tuple.h",
    "//libcxx/include/__hash_table",
    "//libcxx/include/__tree",
    "//libcxx/include/__type_traits/can_extract_key.h",
    "//libcxx/include/__utility/try_key_extraction.h",
    "//libcxx/include/map",
    "//libcxx/include/module.modulemap.in",
    "//libcxx/include/set",
    "//libcxx/include/tuple",
    "//libcxx/include/unordered_map",
    "//libcxx/test/libcxx-03/system_reserved_names.gen.py",
    "//libcxx/test/libcxx/containers/sequences/deque/segmented_iterator.compile.pass.cpp",
    "//libcxx/test/libcxx/localization/locale.categories/__scan_keyword.pass.cpp",
    "//libcxx/test/std/containers/associative/multiset/emplace.pass.cpp",
    "//libcxx/test/std/containers/associative/set/emplace.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multiset/emplace.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.set/emplace.pass.cpp",
    "//lldb/tools/lldb-dap/Protocol/ProtocolRequests.cpp",
    "//llvm/test/tools/llvm-exegesis/AArch64/loop-register.s",
    "//llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp",
    "//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",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file