Manifest constants - why not 'alias' ?

[Walter Bright]

David Gileadi wrote:
> FWIW, alias makes the most sense to me out of the current crop of 
> suggestions.  To me it says that wherever I see the alias, it will be 
> replaced with whatever value the alias is for.  That seems to describe 
> manifest constants exactly.

Since there's already:

	alias X Y;

it would seem confusing to add:

	alias Y = X;