message: Fix out-of-range error (MSVC2010) in idl_gen_dart.cpp
  MSVC2010 doesn't support indexed access to \0-terminator.
diff: @@ -120,7 +120,7 @@ class DartGenerator : public BaseGenerator {
  std::ostream_iterator<std::string>(sstream, "."));
  auto ret = sstream.str() + ns.components.back();
  - for (int i = 0; ret[i]; i++) {
  + for (size_t i = 0; i < ret.size(); i++) {
  auto lower = tolower(ret[i]);
  if (lower != ret[i]) {
  ret[i] = static_cast<char>(lower);
  