Rollup merge of #118288 - compiler-errors:is_some_and, r=lqd,dtolnay

Use `is_{some,ok}_and` more in the compiler

slightly more fluent-reading code

compiler/rustc_resolve/src/late/diagnostics.rs

@@ -1869,7 +1869,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
             ),
         };
 
-        fields.map_or(false, |fields| {
+        fields.is_some_and(|fields| {
             fields
                 .iter()
                 .filter(|vis| !self.r.is_accessible_from(**vis, self.parent_scope.module))