gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxx/docs/ReleaseNotes/22.rst",
    "//libcxx/include/__hash_table",
    "//libcxx/include/unordered_map",
    "//libcxx/include/unordered_set",
    "//libcxx/test/std/containers/unord/unord.map/unord.map.cnstr/assign_copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.map/unord.map.cnstr/copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.map/unord.map.cnstr/copy_alloc.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multimap/unord.multimap.cnstr/assign_copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multimap/unord.multimap.cnstr/copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multimap/unord.multimap.cnstr/copy_alloc.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multiset/unord.multiset.cnstr/assign_copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multiset/unord.multiset.cnstr/copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.multiset/unord.multiset.cnstr/copy_alloc.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.set/unord.set.cnstr/assign_copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.set/unord.set.cnstr/copy.pass.cpp",
    "//libcxx/test/std/containers/unord/unord.set/unord.set.cnstr/copy_alloc.pass.cpp"
  ],
  "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": []
}