elm radio, scroller, sys_notify: remove pointers

src/lib/elementary/elm_radio.eo

@@ -51,7 +51,7 @@ class Elm.Radio (Elm.Check, Elm.Interface.Atspi_Widget_Action)
             ]]
          }
          values {
-            valuep: int * @nullable; [[Pointer to the integer to modify]]
+            valuep: ptr(int) @nullable; [[Pointer to the integer to modify]]
          }
       }
       @property selected_object {

src/lib/elementary/elm_scroller.eo

@@ -52,8 +52,8 @@ class Elm.Scroller (Elm.Layout, Elm.Interface_Scrollable,
            @since 1.8
          ]]
          params {
-            @in page_limit_h: int *; [[The maximum of the movable horizontal page]]
-            @in page_limit_v: int *; [[The maximum of the movable vertical page]]
+            @in page_limit_h: ptr(int); [[The maximum of the movable horizontal page]]
+            @in page_limit_v: ptr(int); [[The maximum of the movable vertical page]]
          }
       }
    }

src/lib/elementary/elm_sys_notify.eo

@@ -37,7 +37,7 @@ struct Elm.Sys_Notify.Action_Invoked
      @since 1.8
    ]]
    id: uint; [[ID of the notification]]
-   action_key: char *; [[The key of the action invoked. These match the
+   action_key: ptr(char); [[The key of the action invoked. These match the
                                 keys sent over in the list of actions]]
 }