37   DIExpression::expr_op_iterator Start, End;  variable
42       assert(Start == End);  in DIExpressionCursor()
45     Start = Expr->expr_op_begin();  in DIExpressionCursor()
50       : Start(Expr.begin()), End(Expr.end()) {}  in DIExpressionCursor()
56     if (Start == End)  in take()
58     return *(Start++);  in take()
62   void consume(unsigned N) { std::advance(Start, N); }  in consume()
66     if (Start == End)  in peek()
68     return *(Start);  in peek()
73     if (Start == End)  in peekNext()
76     auto Next = Start.getNext();  in peekNext()
84   operator bool() const { return Start != End; }
86   DIExpression::expr_op_iterator begin() const { return Start; }  in begin()
91     return DIExpression::getFragmentInfo(Start, End);  in getFragmentInfo()