*          metaclass for call interception.
 *     <li> Overrides {@link Closure#setDelegate}, adding a call to {@link InstrumentedGroovyMetaClassHelper#addInvocationHooksInClosureDispatchObject} with
 *          the new delegate. This ensures the invariant above.
 *     <li> Adds {@link InstrumentableClosure} to the set of interfaces.

     * {@link InstrumentedGroovyMetaClassHelper#addInvocationHooksToEffectivelyInstrumentClosure(Closure, BytecodeInterceptorFilter)}
     */
    public static void addInvocationHooksInClosureDispatchObject(@Nullable Object object, boolean isEffectivelyInstrumented, BytecodeInterceptorFilter interceptorFilter) {
        if (object == null) {
            return;
        }
        if (isEffectivelyInstrumented) {