message: Fix variable shadowing in qt/qvaluecombobox.cpp
  qt/qvaluecombobox.cpp:15:34: warning: declaration shadows a field of 'QValueComboBox' [-Wshadow]
  void QValueComboBox::setRole(int role) { this->role = role; }
  ^
  ./qt/qvaluecombobox.h:32:9: note: previous declaration is here
  int role;
  ^
diff: @@ -12,5 +12,5 @@ QValueComboBox::QValueComboBox(QWidget *parent) : QComboBox(parent), role(Qt::Us
  QVariant QValueComboBox::value() const { return itemData(currentIndex(), role); }
  void QValueComboBox::setValue(const QVariant &value) { setCurrentIndex(findData(value, role)); }
  -void QValueComboBox::setRole(int role) { this->role = role; }
  +void QValueComboBox::setRole(int _role) { this->role = _role; }
  void QValueComboBox::handleSelectionChanged(int idx) { Q_EMIT valueChanged(); }
  