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",
    "//compiler-rt/test/hwasan:check-hwasan"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/lib/Driver/ToolChains/Darwin.cpp",
    "//clang/test/Driver/Inputs/basic_darwin_toolchain/usr/lib/libc++.dylib",
    "//clang/test/Driver/Inputs/basic_darwin_toolchain/usr/lib/libc++experimental.a",
    "//clang/test/Driver/Inputs/basic_darwin_toolchain_static/usr/bin/.keep",
    "//clang/test/Driver/Inputs/basic_darwin_toolchain_static/usr/include/c++/v1/.keep",
    "//clang/test/Driver/Inputs/basic_darwin_toolchain_static/usr/lib/libc++.a",
    "//clang/test/Driver/Inputs/basic_darwin_toolchain_static/usr/lib/libc++experimental.a",
    "//clang/test/Driver/darwin-header-search-libcxx.cpp",
    "//clang/test/Driver/darwin-link-libcxx.cpp",
    "//clang/test/Driver/experimental-library-flag.cpp",
    "//compiler-rt/cmake/config-ix.cmake"
  ],
  "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": []
}