SvxOverlineItem probably should be SvxTextLineItem here

Change-Id: I6d8a40f38a827c1f7644d3c9d6a3cad4481b5e7c
Reviewed-on: https://gerrit.libreoffice.org/82456
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/svx/source/form/fmtextcontrolshell.cxx b/svx/source/form/fmtextcontrolshell.cxx
index e709b9c..8815d1a 100644
--- a/svx/source/form/fmtextcontrolshell.cxx
+++ b/svx/source/form/fmtextcontrolshell.cxx
@@ -837,7 +837,7 @@ namespace svx
                const SfxPoolItem* pItem = aToggled.GetItem( nWhich );
                if ( ( SID_ATTR_CHAR_UNDERLINE == nSlot ) || ( SID_ATTR_CHAR_OVERLINE == nSlot ) )
                {
                    const SvxOverlineItem* pTextLine = dynamic_cast<const SvxOverlineItem*>( pItem  );
                    const SvxTextLineItem* pTextLine = dynamic_cast<const SvxTextLineItem*>( pItem  );
                    DBG_ASSERT( pTextLine, "FmTextControlShell::ExecuteTextAttribute: ooops - no underline/overline item!" );
                    if ( pTextLine )
                    {