The Reflection code in ClassMetadata(Info*)s is getting out of control.

I want to remove the dependency by introducing a ReflectionService interface:

interface ReflectionService
{
    public function getClassShortName($class);
    public function getClassNamespace($class);
    public function getClass($class);
    public function getAccessibleProperty($class, $property);
    public function hasPublicMethod($class, $method);
}

The reflection methods are specifically allowed to return NULL, so that we can create a StaticReflectionService that works without the classes actually existing.