Reflect::on - Add invoke method functionality

[nickl-]

Here's an easy one to get your fingers wet while you explore what's under the hood.

Task

Enable invoke method functionality for Respect/Test/Reflect::on. Completion would allow us to execute any private, public, protected, static or instance method against either a supplied class or object.

Reflect::on('Respect\\Test\\TestGuy')->invoke('privateMethod', [&$byref, $value, 47, 'this-rocks']);

Heads-up

ReflectObject already has the invoke($name, array $args array()) method and getInstance has an implementation for executing the constructor as example. invoke needs to become public, added to the Reflectable interface and exposed through Respect\Test\Reflect.

Expand the TestGuy class in the ReflectTest unit test to include public, protected and private methods, both instance and static. Also add pass by reference parameters to test things thoroughly.

Test invoke functionality in both ReflectTest and ReflectObjectTest (see get/setProperty for examples) to ensure we get closer to 100% code coverage.

Suggestions

Have fun and don't hesitate to ask for help.

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Be awesome as you are and make for Happy Pandas! =)