Use with_capacity_and_hasher instead of using base

Author: tosti007

library/std/src/collections/hash/set.rs

@@ -143,7 +143,7 @@ impl<T> HashSet<T, RandomState> {
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn with_capacity(capacity: usize) -> HashSet<T, RandomState> {
-        HashSet { base: base::HashSet::with_capacity_and_hasher(capacity, Default::default()) }
+        HashSet::with_capacity_and_hasher(capacity, Default::default())
     }
 }