Mangling for cent/ucent

[bearophile]

Jonathan M Davis:

> I don't believe that either Walter or Andrei has ever
> suggested getting rid of them.

Andrei has suggested few times to implement a fixnum in Phobos 
instead of the built-in cent/ucent, and he was quite against a 
recent change that makes allows programmers to know if the 
current D compiler has implemented cent/ucent:

https://github.com/D-Programming-Language/dmd/pull/672

http://d.puremagic.com/issues/show_bug.cgi?id=785

Bye,
bearophile