public StructOrUnionSpecifierWithoutDeclarations(StructOrUnion structOrUnion, Identifier identifier)
 {
     StructOrUnion = structOrUnion;
     Identifier = identifier;
 }
 public StructOrUnionSpecifierWithDeclarations(StructOrUnion structOrUnion, Identifier identifier, StructDeclarationList declarations)
 {
     StructOrUnion = structOrUnion;
     Identifier = identifier;
     Declarations = declarations;
 }