Clarify the doc of MethodInsnNode.owner

asm-tree/src/main/java/org/objectweb/asm/tree/MethodInsnNode.java

@@ -43,6 +43,8 @@ public class MethodInsnNode extends AbstractInsnNode {
   /**
    * The internal name of the method's owner class (see {@link
    * org.objectweb.asm.Type#getInternalName()}).
+   *
+   * For methods of arrays, e.g., <tt>clone()</tt>, the array type descriptor.
    */
   public String owner;