message: [MHLO] Add missing MHLO -> HloOpcode mapping.
diff: @@ -1919,6 +1919,10 @@ StatusOr<::xla::HloOpcode> MhloToHloOpcode(mlir::Operation* op) {
  return xla::HloOpcode::kReduceWindow;
  } else if (mlir::isa<mlir::mhlo::ReducePrecisionOp>(op)) {
  return xla::HloOpcode::kReducePrecision;
  + } else if (mlir::isa<mlir::mhlo::DotGeneralOp>(op)) {
  + return xla::HloOpcode::kDot;
  + } else if (mlir::isa<mlir::mhlo::BroadcastInDimOp>(op)) {
  + return xla::HloOpcode::kBroadcast;
  } else {
  std::string s;
  {
  