gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/lib/CodeGen/CGDebugInfo.cpp",
    "//clang/lib/Driver/ToolChains/ZOS.cpp",
    "//clang/test/CodeGenCXX/ubsan-coroutines.cpp",
    "//clang/test/DebugInfo/Generic/macro-info.c",
    "//clang/test/Driver/fat-archive-unbundle-ext.c",
    "//clang/test/Headers/cuda_with_openmp.cu",
    "//lldb/source/Host/windows/ProcessLauncherWindows.cpp",
    "//llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp",
    "//llvm/test/CodeGen/Thumb2/LowOverheadLoops/minloop.ll",
    "//llvm/test/Transforms/LoopStrengthReduce/AArch64/prefer-all.ll",
    "//llvm/test/lit.cfg.py",
    "//mlir/lib/Conversion/SCFToGPU/SCFToGPU.cpp",
    "//mlir/test/Conversion/SCFToGPU/parallel_loop.mlir"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}