Deprecate real

[Nicholas Wilson via Digitalmars-d]

On Friday, 30 June 2017 at 10:07:44 UTC, ixid wrote:
> Are there any reasons not to put real on the path to removal? 
> The hardware is deprecated by both Intel and AMD and it seems 
> like an unnecessary source of confusion.

Don't forget that real is only fp80 on x86. On AArch64(?) it 
is/should be fp128 which _is_ supported, there is also PowerPC 
double double.