gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxx/docs/ReleaseNotes/20.rst",
    "//libcxx/include/__charconv/tables.h",
    "//libcxx/include/__charconv/to_chars_base_10.h",
    "//libcxx/include/__charconv/to_chars_integral.h",
    "//libcxx/include/__charconv/to_chars_result.h",
    "//libcxx/include/__charconv/traits.h",
    "//libcxx/include/__format/formatter_floating_point.h",
    "//libcxx/include/__format/formatter_integral.h",
    "//libcxx/include/__format/formatter_output.h",
    "//libcxx/include/locale",
    "//libcxx/include/module.modulemap",
    "//libcxx/test/benchmarks/locale/num_put.bench.cpp",
    "//libcxx/test/std/localization/locale.categories/category.numeric/locale.nm.put/facet.num.put.members/put_pointer.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": []
}
running all tests due to change to blacklisted file