Regression test fix.

Author: highperformancecoder

doc/Ravel.pdf

@@ -499,6 +499,7 @@ SUITE(Canvas)
  auto cc=model->addItem(new Variable<VariableType::flow>("cc"));
  cc->moveTo(500,300);
  auto cv=dynamic_cast<VariableBase*>(cc.get());
+ cv->iWidth(10);
  cv->value(1000);
  cv->sliderMin(0);
  cv->sliderMax(2000);