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/CodeGen/Analysis.cpp",
    "//llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp",
    "//llvm/test/CodeGen/X86/tailcall-nofpclass.ll",
    "//mlir/lib/Dialect/Affine/Transforms/AffineLoopInvariantCodeMotion.cpp",
    "//mlir/lib/Dialect/Affine/Utils/LoopUtils.cpp",
    "//mlir/lib/Dialect/Affine/Utils/Utils.cpp",
    "//mlir/test/Dialect/Affine/affine-data-copy.mlir",
    "//mlir/test/Dialect/Affine/affine-loop-invariant-code-motion.mlir",
    "//mlir/test/Dialect/Affine/loop-fusion-4.mlir"
  ],
  "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": []
}