message: Handle multiple stages for a single address in InstructionModel
diff: @@ -79,12 +79,17 @@ QVariant InstructionModel::PCData(uint32_t addr) const {
  return "0x" + QString::number(addr, 16);
  }
  QVariant InstructionModel::stageData(uint32_t addr) const {
  + QStringList stagesForAddr;
  for (const auto& si : m_stageInfos) {
  if ((si.second.pc == addr) && si.second.pc_valid) {
  - return si.first;
  + stagesForAddr << si.first;
  }
  }
  + if (stagesForAddr.isEmpty()) {
  return QVariant();
  + } else {
  + return stagesForAddr.join("/");
  + }
  }
  QVariant InstructionModel::instructionData(uint32_t addr) const {
  