[529438] Manually dispose DropDownMergeMenuAction when the toolbar
is disposed

We need to manually dispose this IMenuCreator since the
eclipse.compare never disposes the items in the toolbar manager.It
simply removes them (whitout disposal).
See:
* org.eclipse.compare.CompareViewerPane.clearToolBar(Composite)
* Dispose listener in
org.eclipse.compare.CompareViewerPane(Compsite,int)

Bug: 529438
Change-Id: I6458a8207d3ded90d87a0e90fb85fd1b76f028b3
Signed-off-by: Arthur Daussy <arthur.daussy@obeo.fr>
1 file changed