LWG3913 ranges::const_iterator_t<range R> fails to accept arrays of unknown bound

[jwakely]

https://cplusplus.github.io/LWG/issue3913

LWG would like SG9 and/or LEWG to consider this issue.

Relates #1509

[brycelelbach]

@inbal2l please see this first.

[dhollman]

Seen by SG9 in Kona 2023, on Monday, Nov 6th (full minutes).

SG9 voted in Kona on the following poll:

"SG9 believes LWG3913 is NAD and obsolete due to LWG3946. If needs a paper to change ranges::cbegin() if the author this should change."

SF	F	N	A	SA
3	4	1	0	0