Add test from rust-lang#59033

Author: GuillaumeGomez

src/test/rustdoc/useless_lifetime_bound.rs

@@ -5,3 +5,9 @@ use std::marker::PhantomData;
 pub struct Scope<'env> {
     _marker: PhantomData<&'env mut &'env ()>,
 }
+
+// @has useless_lifetime_bound/struct.Scope.html
+// @!has - '//*[@class="rust struct"]' "T: 'a + 'a"
+pub struct SomeStruct<'a, T: 'a> {
+    _marker: PhantomData<&'a T>,
+}