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": [
    "//llvm/lib/Transforms/Vectorize/LoopVectorize.cpp",
    "//llvm/test/Transforms/LoopVectorize/X86/cleanup-runtime-checks.ll",
    "//llvm/test/Transforms/LoopVectorize/pr45259.ll",
    "//llvm/test/Transforms/LoopVectorize/pr47343-expander-lcssa-after-cfg-update.ll",
    "//llvm/test/Transforms/LoopVectorize/reuse-lcssa-phi-scev-expansion.ll",
    "//llvm/test/Transforms/LoopVectorize/skeleton-lcssa-crash.ll",
    "//llvm/utils/gn/secondary/bolt/lib/Core/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/lib/CAS/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/unittests/CAS/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": []
}