MemberExpr constructor
      
      MemberExpr(})
     
    
    
Implementation
MemberExpr(
  this.object,
  this.key, {
  this.isNullable = false,
  super.source,
  super.line = 0,
  super.column = 0,
  super.offset = 0,
  super.length = 0,
}) : super(Semantic.memberGetExpr);