Code behaves incorrectly if it is compiled in std.functional

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On Friday, 5 June 2015 at 03:15:46 UTC, anonymous wrote:
> On Friday, 5 June 2015 at 02:38:39 UTC, ketmar wrote:
>> here's dustmited source:
>
> Further reduced:
>
> void unaryFun()(auto int a) pure nothrow @safe @nogc {}
> alias Identity(F) = F;
> void main()
> {
>   unaryFun!()(41);
>   static void fun(int n) pure nothrow @safe @nogc {}
>   alias F = typeof(fun);
>   pragma(msg, F); /* ...(int n) */
>   pragma(msg, Identity!F); /* ...(auto int) */
> }

'auto int' doesn't compile with 2.067.1. I know because this is 
blocking a PR I'm working on.