PhantomData<T> does not require bounds on T

testing/tests/test_gen.rs

@@ -35,6 +35,12 @@ fn test_gen() {
     }
     assert::<PhantomX>();
 
+    #[derive(Serialize, Deserialize)]
+    struct PhantomT<T> {
+        t: PhantomData<T>,
+    }
+    assert::<PhantomT<X>>();
+
     #[derive(Serialize, Deserialize)]
     struct Bounds<T: Serialize + Deserialize> {
         t: T,