post qualifier and template constraint limitation, is there a reason ?

[Brian Schott via Digitalmars-d]

On Sunday, 18 January 2015 at 08:40:19 UTC, Walter Bright wrote:
> Sounds like a good idea. If I wasn't clear, I think that class 
> change was a mistake.

Now that I see from that pull request that the ugly syntax was 
the original, I'm not so sure. The dfix feature I'm planning is 
to convert

class A if (B) : C

to

class A : C if (B)