gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/utils/lit/lit/LitConfig.py",
    "//llvm/utils/lit/lit/ShUtil.py",
    "//llvm/utils/lit/lit/TestRunner.py",
    "//llvm/utils/lit/lit/formats/base.py",
    "//llvm/utils/lit/lit/formats/googletest.py",
    "//llvm/utils/lit/lit/formats/shtest.py",
    "//llvm/utils/lit/lit/util.py",
    "//llvm/utils/lit/tests/Inputs/check_path.py",
    "//llvm/utils/lit/tests/Inputs/shtest-format/external_shell/write-control-chars.py",
    "//llvm/utils/lit/tests/Inputs/shtest-not/print_environment.py",
    "//llvm/utils/lit/tests/Inputs/shtest-timeout/short.py"
  ],
  "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