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/Driver/ToolChains/Arch/AArch64.cpp",
    "//clang/test/Driver/Inputs/cpunative/cortex-a57",
    "//clang/test/Driver/Inputs/cpunative/cortex-a72",
    "//clang/test/Driver/Inputs/cpunative/cortex-a76",
    "//clang/test/Driver/Inputs/cpunative/neoverse-n1",
    "//clang/test/Driver/Inputs/cpunative/neoverse-v2",
    "//clang/test/Driver/aarch64-mcpu-native.c",
    "//clang/test/lit.cfg.py",
    "//llvm/lib/TargetParser/Host.cpp"
  ],
  "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": []
}