alias syntax

[Ellery Newcomer]

> ----------------------------------------------------------
> As to your question:
> class K{
>   alias static int B;
>   B b; // b is non-static
> }
> ----------------------------------------------------------
> 

Curious. I didn't actually test the example, but I did for deprecated,
and it doesn't get ignored.

Further investigation shows that scope also isn't ignored, but the rest are.

Also note that const is okay in a typedef, but not in an alias.

And going over into D2 land,

alias const(int) I; //is permitted, and
alias immutable int I; //is permitted, but
alias const int I; // bombs due to that one weird semantic rule

Oh well. I guess I'll just parse it and flag any use of it as an error.