Add missing interfaces from WasmArray.
We don't need any special implementation of j.l.Object methods; inherited ones should work as intended.
*/
package javaemul.internal;
+import java.io.Serializable;
+
/** A common base abstraction for the arrays in Wasm. */
-abstract class WasmArray {
+abstract class WasmArray implements Serializable, Cloneable {
abstract int getLength();
