Added toHexString().

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4505 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/util/StringUtil.as

@@ -170,6 +170,18 @@ public class StringUtil
         return array;
     }
 
+    /**
+     * Return a hex string representation of the specified value.
+     */
+    public static function toHexString (value :uint) :String
+    {
+        var str :String = "";
+        for (var x :int = 0; x < 8; x++) {
+            str = HEX[(value >> (x * 4)) & 0xF] + str;
+        }
+        return "0x" + str;
+    }
+
     /**
      * Generates a string from the supplied bytes that is the hex encoded
      * representation of those byts. Returns the empty String for a