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"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/lib/Driver/ToolChain.cpp",
    "//llvm/test/CodeGen/AMDGPU/compute-known-bits-nofpclass.ll",
    "//llvm/test/CodeGen/AMDGPU/copysign-simplify-demanded-bits.ll",
    "//llvm/test/CodeGen/AMDGPU/copysign-to-disjoint-or-combine.ll",
    "//llvm/test/CodeGen/AMDGPU/nofpclass-call.ll",
    "//utils/bazel/llvm-project-overlay/mlir/BUILD.bazel"
  ],
  "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": []
}