[Bug 29376] Need an abstract operation for "is this an IDL-defined property"

https://www.w3.org/Bugs/Public/show_bug.cgi?id=29376

--- Comment #9 from Boris Zbarsky <bzbarsky@mit.edu> ---
You can define toJSON and valueOf using current IDL syntax, I believe, though
if they're non-enumerable we may need an extended attribute for that.  Which we
may want anyway, really.

For @@toPrimitive we'd need some IDL syntax to have symbol-named stuff....

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Received on Tuesday, 19 January 2016 15:02:10 UTC