gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang-tools-extra/test/clang-tidy/checkers/abseil/string-find-startswith.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/bugprone/reserved-identifier-c.c",
    "//clang-tools-extra/test/clang-tidy/checkers/bugprone/reserved-identifier.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/google/readability-casting.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/llvm/qualified-auto.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/misc/static-assert.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique-macros.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/modernize/unary-static-assert.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/modernize/use-bool-literals-ignore-macros.cpp",
    "//clang-tools-extra/test/clang-tidy/checkers/modernize/use-override-cxx98.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": []
}