e7d33665d0
Since the native syntax requires that attribute names and block types be identifiers, there is no way for "//" to be a valid symbol in a body. Therefore we can special-case it here as an ignored property name that users can then use for comments. This special handling intentionally does not apply to objects representing zcl object expressions, since it _is_ valid to have non-identifier keys there and so "//" may be a legitimate object key for some applications.