ADDS VALUES INSTEAD OF SIMPLY REPLACING. If strings, adds. If arrays, pushes second one to first. If
numbers, replaces with 2nd. If booleans, prefers true. If objects, merges deeply, doing the same to
all its properties. This is called objects_add_values not simply add_values, because this is only
useful for adding object types.
ADDS VALUES INSTEAD OF SIMPLY REPLACING. If strings, adds. If arrays, pushes second one to first. If numbers, replaces with 2nd. If booleans, prefers true. If objects, merges deeply, doing the same to all its properties. This is called objects_add_values not simply add_values, because this is only useful for adding object types.