92 using RegionVariable = OpVariableElement<NamedRegion, VariableElement::Region>;  typedef
831   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genElementParserStorage()
891   } else if (auto *region = dyn_cast<RegionVariable>(param)) {  in genCustomParameterParser()
1131     } else if (auto *regionVar = dyn_cast<RegionVariable>(firstElement)) {  in genElementParser()
1265   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genElementParser()
1697   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genCustomDirectiveParameterPrinter()
1850       .Case<RegionVariable>([&](RegionVariable *element) {  in genOptionalGroupPrinterAnchor()
1985             .Case([&](RegionVariable *reg) {  in genElementPrinter()
2058   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genElementPrinter()
2364   if (auto *regionVar = dyn_cast<RegionVariable>(el))  in isOptionallyParsed()
2743     return create<RegionVariable>(region);  in parseVariableImpl()
2830              OperandVariable, RegionVariable, SuccessorVariable>(argument)) {  in verifyCustomDirectiveArguments()
3008             .Case([&](RegionVariable *) { return success(); })  in verifyOIListParsingElement()  argument
3147       .Case([&](RegionVariable *) {  in verifyOptionalGroupElement()  argument