DeleteSubStmt constructor
      
      DeleteSubStmt(})
     
    
    
Implementation
DeleteSubStmt(
  this.object,
  this.key, {
  super.hasEndOfStmtMark = false,
  super.source,
  super.line = 0,
  super.column = 0,
  super.offset = 0,
  super.length = 0,
}) : super(Semantic.deleteSubMemberStmt);