gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/include/mlir/Dialect/Ptr/IR/PtrEnums.td",
    "//mlir/include/mlir/Dialect/Ptr/IR/PtrOps.td",
    "//mlir/lib/Dialect/Ptr/IR/PtrDialect.cpp",
    "//mlir/lib/Target/LLVMIR/Dialect/Ptr/PtrToLLVMIRTranslation.cpp",
    "//mlir/test/Dialect/Ptr/invalid.mlir",
    "//mlir/test/Dialect/Ptr/ops.mlir",
    "//mlir/test/Target/LLVMIR/ptr.mlir"
  ],
  "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": []
}