-eval "require RT::Interface::Web::QueryBuilder::Tree_Vendor";
-die $@ if ($@ && $@ !~ qr{^Can't locate RT/Interface/Web/QueryBuilder/Tree_Vendor.pm});
-eval "require RT::Interface::Web::QueryBuilder::Tree_Local";
-die $@ if ($@ && $@ !~ qr{^Can't locate RT/Interface/Web/QueryBuilder/Tree_Local.pm});