Bug 507546 - fixed IllegalArgumentException on code mining dispose

Change-Id: Ia1ae9e513b023fc33026a6cdd73d2fd16159bdbb
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.debug/+/190795
Tested-by: Andrey Loskutov <loskutov@gmx.de>
Reviewed-by: Andrey Loskutov <loskutov@gmx.de>
1 file changed