gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//utils/docs/__main__.py",
    "//utils/docs/llvm_sphinx/ext/absolute_links.py",
    "//utils/docs/llvm_sphinx/ext/absolute_links_test/conf.py",
    "//utils/docs/llvm_sphinx/ext/absolute_links_test/index.rst",
    "//utils/docs/llvm_sphinx/ext/absolute_links_test/markdown.md",
    "//utils/docs/llvm_sphinx/ext/absolute_links_test/rest.rst",
    "//utils/docs/llvm_sphinx/ext/absolute_links_test/target.md",
    "//utils/docs/llvm_sphinx/ext/checks.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": []
}