67     RegionVariable,  enumerator
130 using RegionVariable =  typedef
131     VariableElement<NamedRegion, Element::Kind::RegionVariable>;
824   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genElementParserStorage()
896   } else if (auto *region = dyn_cast<RegionVariable>(&param)) {  in genCustomParameterParser()
1063     } else if (auto *regionVar = dyn_cast<RegionVariable>(firstElement)) {  in genElementParser()
1158   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genElementParser()
1543     } else if (auto *region = dyn_cast<RegionVariable>(&param)) {  in genCustomDirectivePrinter()
1637     } else if (auto *region = dyn_cast<RegionVariable>(anchor)) {  in genElementPrinter()
1714   } else if (auto *region = dyn_cast<RegionVariable>(element)) {  in genElementPrinter()
2535     element = std::make_unique<RegionVariable>(region);  in parseVariable()
2643       !isa<OperandVariable>(firstElement) && !isa<RegionVariable>(firstElement))  in parseOptional()
2716       .Case<RegionVariable>([&](RegionVariable *) {  in parseOptionalChildElement()  argument
2817            AttributeVariable, OperandVariable, RegionVariable,  in parseCustomDirectiveParameter()