Always copying client class name to temporary buffer, to which version string also points to, in order to convert integral class names to string and unify the logic for versioning later on.
-- v2: user32: Always copy class names to a temporary buffer. comctl32: Fix class name case in manifest. user32: Move get_class_version out of get_class_info. user32: Load class module in get_class_version. user32: Move user32_module default out of get_class_info. user32: Init class name outside of get_versioned_name.