message: Update dump_mlir_util.cc
diff: @@ -41,7 +41,7 @@ std::string MakeUniqueFilename(string name) {
  static NameCounts& instance = *new NameCounts;
  // Remove illegal characters from `name`.
  - for (size_t i = 0; i < name.size(); ++i) {
  + for (int i = 0, e = name.size(); i < e; ++i) {
  char ch = name[i];
  if (ch == '/' || ch == '[' || ch == ']' || ch == '*' || ch == '?' ||
  ch == '\\') {
  