Add a unit test checking selection updating in virtual wxListCtrl.

Verify that the selection is updated correctly after the number of items in
the control is decreased.

See #12378.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66141 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/test_vc8_test_gui.vcproj

@@ -1151,6 +1151,10 @@
 				RelativePath=".\controls\treectrltest.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\controls\virtlistctrltest.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\controls\windowtest.cpp"
 				>