Fix missing character

Co-Authored-By: Nvarkor <github@varkor.com>

src/test/ui/type-alias-impl-trait/issue-60564.rs

@@ -18,7 +18,7 @@ impl<T, E> IterBits for T
 {
     type BitsIter = IterBitsIter<T, E, u8>;
     fn iter_bits(self, n: u8) -> Self::BitsIter {
-    //~^ ERROR defining opaque type use does not fully define opaque typ
+    //~^ ERROR defining opaque type use does not fully define opaque type
         (0u8..n)
             .rev()
             .map(move |shift| ((self >> T::from(shift)) & T::from(1)).try_into().unwrap())