Overlaping labels because of mx.charts.AxisRender bug in calcVerticalSpacing

method calcVerticalSpacing in mx.charts.AxisRender contains redundant "break;" instruction which prevent call of "reduceLabels" if last and previous labels have enought space. Method stops searching for other overlapping labels at this point.

// If we're going vertical, we assume they are all
// the same height, and just count until we get
// an initial skip count.
break;
skipCount = 0;
prevLabel = thisLabel;

Lines:
skipCount = 0;
prevLabel = thisLabel;

Are going to be used for searching next group of overlapping items. So "break;" should be removed.