Fix Phobos dependencies on autodecoding

[Walter Bright]

On 8/15/2019 12:44 PM, Jonathan M Davis wrote:
> There should only be a
> single way to represent a given character.

Exactly. And two glyphs that render identically should be the same code point.

After all, when we write:

    a + b = c

we don't use a separate code point for the letters. Also,

    a) one item
    b) another item

we don't use a separate code point, either. I've debated this point with Unicode 
people, and their arguments for separate glyphs fall to pieces when I point this 
out.