[webidl] explicitly invoke [[HasOwnProperty]], [[GetProperyOf]], etc. more often (#42)

There are many instances in the spec where it says something like "If *O* has an own property with name *P*, then ...".  Given proxies, we really should be invoking [[HasOwnProperty]] here explicitly, because we'll want to be clear that the proxy handler is invoked.  (And it's not really clear whether a proxy has "real" own properties anyway.)

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Reply to this email directly or view it on GitHub:
https://github.com/heycam/webidl/issues/42