is(...) with alias this

[Zhenya]

Hi!
I just read the David's post 
http://forum.dlang.org/thread/kc9e74$bg7$1@digitalmars.com
"
This code worked with dmd 2.060:

import std.stdio;
import std.traits;

struct OhWhy(S) {
    S[] arr;
    alias arr this;
}

void main() {
	static assert(isArray!(OhWhy!(float)));
	
}

But fails with dmd 2.061:
ss.d(10): Error: static assert  (isArray!(OhWhy!(float))) is false

(same happens with alias this to static arrays and 
isArray/isStaticArray)


Is this intended or a regression? If latter, I'll submit a 
bug-ticket.
"
When I read this I understood that I don't know what should return
is(OhWhy!float unused == T[],T)

Of course OhWhy!float implicit convertable into float[].But on 
the other hand
is with == (not :) should check the type without conversions.
What do you think?

DMD 2.060 HEAD evaluate is(OhWhy!float unused == T[],T) -> true