Type safety patrol.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4243 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/util/StreamableArrayList.java

@@ -59,7 +59,8 @@ public class StreamableArrayList<E> extends ArrayList<E>
         int ecount = in.readInt();
         ensureCapacity(ecount);
         for (int ii = 0; ii < ecount; ii++) {
-            add((E)in.readObject());
+            @SuppressWarnings("unchecked") E elem = (E)in.readObject();
+            add(elem);
         }
     }
 }