Rollup merge of #139811 - yotamofek:pr/newtype_cleanups, r=oli-obk

Use `newtype_index!`-generated types more idiomatically

Continuation of sorts of #139674
Shouldn't affect anything, just makes some code simpler

compiler/rustc_resolve/src/late.rs

@@ -1948,7 +1948,7 @@ impl<'a, 'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> {
 
         self.record_lifetime_res(
             anchor_id,
-            LifetimeRes::ElidedAnchor { start: id, end: NodeId::from_u32(id.as_u32() + 1) },
+            LifetimeRes::ElidedAnchor { start: id, end: id + 1 },
             LifetimeElisionCandidate::Ignore,
         );
         self.resolve_anonymous_lifetime(&lt, anchor_id, true);