gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/test/AST/ast-dump-using-template.cpp",
    "//clang/test/CodeGen/PowerPC/ppc-tmmintrin.c",
    "//clang/test/CodeGen/X86/avx-builtins.c",
    "//clang/test/CodeGen/paren-list-agg-init.cpp",
    "//clang/test/CodeGenCXX/microsoft-abi-throw.cpp",
    "//clang/test/CodeGenOpenCL/builtins-amdgcn-vi.cl",
    "//clang/test/Driver/baremetal-sysroot.cpp",
    "//clang/test/Driver/baremetal.cpp",
    "//clang/test/ExtractAPI/objc_property.m",
    "//clang/test/SemaOpenACC/set-construct-ast.cpp",
    "//lld/test/ELF/aarch64-thunk-bti.s",
    "//llvm/test/Analysis/CostModel/SystemZ/i128-cmp-ext-conv.ll",
    "//llvm/test/CodeGen/AArch64/fpimm.ll",
    "//llvm/test/CodeGen/ARM/shifter_operand.ll",
    "//llvm/test/CodeGen/ARM/sxt_rot.ll",
    "//llvm/test/CodeGen/Thumb2/LowOverheadLoops/branch-targets.ll",
    "//llvm/test/Transforms/CallSiteSplitting/callsite-split.ll",
    "//llvm/test/Transforms/Coroutines/coro-debug-coro-frame.ll",
    "//llvm/test/Transforms/LoopVectorize/AArch64/nontemporal-load-store.ll",
    "//llvm/test/tools/llvm-cov/Inputs/binary-formats.canonical.json",
    "//polly/test/CodeGen/scalar-references-used-in-scop-compute.ll"
  ],
  "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": []
}