gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxx/docs/FeatureTestMacroTable.rst",
    "//libcxx/docs/ReleaseNotes/22.rst",
    "//libcxx/docs/Status/Cxx23Papers.csv",
    "//libcxx/include/CMakeLists.txt",
    "//libcxx/include/__compare/three_way_comparable.h",
    "//libcxx/include/__concepts/comparison_common_type.h",
    "//libcxx/include/__concepts/equality_comparable.h",
    "//libcxx/include/module.modulemap.in",
    "//libcxx/include/version",
    "//libcxx/test/std/algorithms/alg.sorting/alg.sort/partial.sort.copy/ranges_partial_sort_copy.pass.cpp",
    "//libcxx/test/std/concepts/concepts.compare/concept.equalitycomparable/equality_comparable_with.compile.pass.cpp",
    "//libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable_with.compile.pass.cpp",
    "//libcxx/test/std/language.support/support.limits/support.limits.general/concepts.version.compile.pass.cpp",
    "//libcxx/test/std/language.support/support.limits/support.limits.general/version.version.compile.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/range.cmp/equal_to.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/range.cmp/greater.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/range.cmp/greater_equal.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/range.cmp/less.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/range.cmp/less_equal.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/range.cmp/not_equal_to.pass.cpp",
    "//libcxx/test/support/compare_types.h",
    "//libcxx/utils/generate_feature_test_macro_components.py",
    "//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