gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//.github/workflows/commit-access-review.yml",
    "//.github/workflows/issue-subscriber.yml",
    "//llvm/test/tools/llvm-cov/Inputs/binary-formats.canonical.json",
    "//llvm/test/tools/llvm-cov/Inputs/showExpansions.json",
    "//llvm/tools/llvm-cov/CoverageExporterJson.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": []
}