38   DIExpression::expr_op_iterator Start, End;  variable
43       assert(Start == End);  in DIExpressionCursor()
46     Start = Expr->expr_op_begin();  in DIExpressionCursor()
51       : Start(Expr.begin()), End(Expr.end()) {}  in DIExpressionCursor()
57     if (Start == End)  in take()
59     return *(Start++);  in take()
63   void consume(unsigned N) { std::advance(Start, N); }  in consume()
67     if (Start == End)  in peek()
69     return *(Start);  in peek()
74     if (Start == End)  in peekNext()
77     auto Next = Start.getNext();  in peekNext()
85   operator bool() const { return Start != End; }
87   DIExpression::expr_op_iterator begin() const { return Start; }  in begin()
92     return DIExpression::getFragmentInfo(Start, End);  in getFragmentInfo()