LIR_OpLoadKlass::_info shadows the field of the same name from LIR_Op

SonarCloud complains about code added in JDK-8277417:
 Field "_info" shadows a field of the same name in base class "LIR_Op"

class LIR_OpLoadKlass: public LIR_Op {
  friend class LIR_OpVisitState;

 private:
  LIR_Opr _obj;
  CodeEmitInfo* _info; <--- here

From the look of it, it seems risky to have two inconsistent fields here. Depending on which base class we use to access it, we might have different _info-s referenced.