Add support for computed values

[gbiryukov]

Right now it's impossible to inspect computed values with this formatter (at least in Chrome 58)
It will be very useful feature.

Thanks

[natew]

@gbiryukov @mweststrate any ideas? Chrome seems to pass the value not the descriptor.

[mweststrate]

You mean it doesn't pass the correct 'this'? Afaik that is as open bug in chrome, run a few times into that as well Op vr 16 jun. 2017 05:25 schreef Nate Wienert <notifications@github.com>:

…

@gbiryukov <https://github.com/gbiryukov> @mweststrate <https://github.com/mweststrate> any ideas? Chrome seems to pass the value not the descriptor. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvGhCgvvXd9azlaOQDdumo3RczmVpEbks5sEfWpgaJpZM4N6_Bh> .

[wildeyes]

@natew What is the descriptor needed for?

[natew]

Haven't looked at this in a while but to inspect get values you need to run Object.getPropertyDescriptor() on the object, and I wasn't sure if that was passed in.