resolve: Do not finalize shadowed bindings

I.e. do not mark them as used, or non-speculative loaded, or similar.
Previously they were sometimes finalized during early resolution, causing issues like rust-lang/rust#144793 (comment).

Author: petrochenkov

tests/ui/useless_attribute.fixed

@@ -153,7 +153,7 @@ pub mod redundant_imports_issue {
         () => {};
     }
 
-    #[expect(redundant_imports)]
+    #[expect(unused_imports)]
     pub(crate) use empty;
 
     empty!();

tests/ui/useless_attribute.rs

@@ -153,7 +153,7 @@ pub mod redundant_imports_issue {
         () => {};
     }
 
-    #[expect(redundant_imports)]
+    #[expect(unused_imports)]
     pub(crate) use empty;
 
     empty!();