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": [
    "//lld/test/COFF/lto-cache-errors.ll",
    "//lld/test/ELF/lto/ltopasses-custom.ll",
    "//llvm/lib/LTO/LTOBackend.cpp",
    "//llvm/test/Transforms/LoopVectorize/RISCV/partial-reduce-dot-product.ll",
    "//llvm/test/tools/llvm-lto2/X86/pipeline.ll",
    "//llvm/utils/gn/secondary/llvm/lib/Analysis/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn"
  ],
  "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": []
}