gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/test/CIR/CodeGen/cxx20-module-initializer.cppm",
    "//clang/test/CIR/CodeGenCXX/typeid-most-derived.cpp",
    "//clang/test/CIR/CodeGenCXX/typeid-should-throw.cpp",
    "//clang/test/CIR/Lowering/calling-conv.cir",
    "//clang/test/CIR/Lowering/module-asm.cir",
    "//clang/test/CIR/Lowering/poison.cir",
    "//clang/test/CIR/Lowering/select.cir",
    "//clang/test/CIR/Lowering/strictfp.cir",
    "//clang/test/CIR/Lowering/ternary.cir",
    "//clang/test/CIR/Tools/warn-default-triple.cir",
    "//clang/test/CIR/Transforms/idiom-recognizer.cpp",
    "//clang/test/CIR/Transforms/lib-opt.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": []
}