Construct a new Java object from the clazz, using the constructor ̀ method_id`

Property definitions

jvm $ JniEnv :: new_object
	# Construct a new Java object from the `clazz`, using the constructor ̀ method_id`
	fun new_object(clazz: JClass, method_id: JMethodID): JavaObject `{
		return (*self)->NewObject(self, clazz, method_id);
	`}
lib/jvm/jvm.nit:228,2--231,3