gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang-tools-extra/clang-doc/assets/clang-doc-mustache.css",
    "//clang-tools-extra/clang-doc/assets/class-template.mustache",
    "//clang-tools-extra/clang-doc/assets/comments-template.mustache",
    "//clang-tools-extra/clang-doc/assets/enum-template.mustache",
    "//clang-tools-extra/clang-doc/assets/function-template.mustache",
    "//clang-tools-extra/clang-doc/assets/mustache-index.js",
    "//clang-tools-extra/clang-doc/assets/namespace-template.mustache",
    "//clang-tools-extra/clang-doc/assets/template.mustache",
    "//clang-tools-extra/clang-doc/tool/CMakeLists.txt"
  ],
  "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": []
}