gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxx/test/extensions/clang/thread/thread.mutex/thread_safety_annotations_not_enabled.pass.cpp",
    "//libcxx/test/extensions/clang/thread/thread.mutex/thread_safety_lock_guard.pass.cpp",
    "//libcxx/test/extensions/clang/thread/thread.mutex/thread_safety_lock_unlock.pass.cpp",
    "//libcxx/test/extensions/clang/thread/thread.mutex/thread_safety_missing_unlock.verify.cpp",
    "//libcxx/test/extensions/clang/thread/thread.mutex/thread_safety_requires_capability.pass.cpp",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/fstream.cons/wchar_pointer.pass.cpp",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/fstream.members/open_wchar_pointer.pass.cpp",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/ifstream.cons/test.dat",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/ifstream.cons/wchar_pointer.pass.cpp",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/ifstream.members/open_wchar_pointer.pass.cpp",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/ifstream.members/test.dat",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/ofstream.cons/wchar_pointer.pass.cpp",
    "//libcxx/test/extensions/libcxx/input.output/file.streams/fstreams/ofstream.members/open_wchar_pointer.pass.cpp",
    "//libcxx/test/extensions/libcxx/iterators/stream.iterators/ostreambuf.iterator/ostreambuf.iter.ops/failed.pass.cpp",
    "//libcxx/test/extensions/libcxx/odr_signature.exceptions.sh.cpp",
    "//libcxx/test/extensions/libcxx/odr_signature.hardening.sh.cpp",
    "//libcxx/test/extensions/libcxx/strings/basic.string/string.capacity/PR53170.pass.cpp",
    "//libcxx/test/extensions/posix/xopen_source.gen.py"
  ],
  "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": []
}