ConditionalAttribute on property or event accessor

[KalleOlaviNiemitalo]

#375 discussed ObsoleteAttribute and ConditionalAttribute on accessors of properties and events.

For ObsoleteAttribute, the conclusion was that the standard does not disallow it even though a C# 7 compiler does, but that it should be allowed in a later version of C# and it is not worth the trouble to change the standard now and revert that change later. The issue was then closed.

Was something decided about whether the standard should be changed to disallow ConditionalAttribute?

[jskeet]

I don't remember that bit of discussion, unfortunately. Hopefully someone else will. I'm going to mark this as C# 8, as I don't believe it should block C# 7, but we definitely want to get to it.

[jskeet]

Not moving this from the C# 8 milestone as we'd still like to try to get it done for C# 8 - but we won't let it block the release if we're facing a deadline.