Fix VarArgTestCase::ArgsValidation() after r76027.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76031 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Document possible problem with unbinding functors.

Unbind() may currently disconnect the wrong functor as it compares them by
address.

See http://thread.gmane.org/gmane.comp.lib.wxwidgets.general/81445

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76033 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix calculating the size of vertical toolbar in wxMSW.

Use the width of the largest toolbar item as the toolbar width, not the width
of the first one. The implicit assumption that all items had the same width
was wrong and resulted in items wider than the first one being truncated.

Closes #3788.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76035 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775