gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxx/include/__config",
    "//libcxx/include/__cstddef/byte.h",
    "//libcxx/include/__exception/exception.h",
    "//libcxx/include/__exception/exception_ptr.h",
    "//libcxx/include/__exception/nested_exception.h",
    "//libcxx/include/__exception/operations.h",
    "//libcxx/include/__exception/terminate.h",
    "//libcxx/include/__fwd/byte.h",
    "//libcxx/include/__new/align_val_t.h",
    "//libcxx/include/__new/destroying_delete_t.h",
    "//libcxx/include/__new/exceptions.h",
    "//libcxx/include/__new/new_handler.h",
    "//libcxx/include/__new/nothrow_t.h",
    "//libcxx/include/any",
    "//libcxx/include/typeinfo",
    "//libcxx/include/variant"
  ],
  "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