Description Christoph Laeubrich 2020-01-03 03:36:34 EST

As described here [1] and here [2] the separator disturbs the layout if not  computes a custom height (what is very inconvenient).

Steps to reproduce:
- create a composite and place a button and a label using grid layout
- everything looks ok
- add between the both the folwoing code
> new Label(showLabelsContainer, SWT.SEPARATOR | SWT.VERTICAL)
- now the composite height is about three times the height


[1] https://www.eclipse.org/forums/index.php/t/137744/
[2] https://stackoverflow.com/questions/9234603/swt-veritcal-separator-too-tall-horizontal-too-short-table-too-narrow