gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxx/docs/FeatureTestMacroTable.rst",
    "//libcxx/docs/ReleaseNotes/24.rst",
    "//libcxx/docs/Status/Cxx26Issues.csv",
    "//libcxx/docs/Status/Cxx26Papers.csv",
    "//libcxx/include/CMakeLists.txt",
    "//libcxx/include/__functional/function_ref.h",
    "//libcxx/include/__functional/function_ref_common.h",
    "//libcxx/include/__functional/function_ref_impl.h",
    "//libcxx/include/__type_traits/register_passable.h",
    "//libcxx/include/functional",
    "//libcxx/include/module.modulemap.in",
    "//libcxx/include/version",
    "//libcxx/modules/std/functional.inc",
    "//libcxx/test/libcxx/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/assert.constant_arg_ptr.pass.cpp",
    "//libcxx/test/libcxx/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/assert.function_ptr.pass.cpp",
    "//libcxx/test/libcxx/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/constant_arg.mandates.verify.cpp",
    "//libcxx/test/std/language.support/support.limits/support.limits.general/functional.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/func.wrap/func.wrap.ref/ctad.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/assign.delete.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/constant_wrapper.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/constant_wrapper_ptr.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/constant_wrapper_ref.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/copy.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/copy_assign.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/function_ptr.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/move.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/move_assign.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.ctor/ref.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/func.wrap.ref.inv/invoke.pass.cpp",
    "//libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.ref/trivially_copyable.compile.pass.cpp",
    "//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