Removal of WeakMap/WeakSet clear

[Andrea Giammarchi]

On Thu, Nov 27, 2014 at 2:44 PM, Andreas Rossberg <rossberg at google.com>
wrote:
>
>
> Well, there is no functionally correct polyfill for WeakMaps that is
> actually weak, regardless of .clear.
>
>
Please bear with me so I understand your point: if you have `o1` and `o2`
and `o1.link = o2;`, wouldn't `o2` be "free" once `o1` is not referenced
anymore ?
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