UFCS not working with alias

[Andre Pany via Digitalmars-d-learn]

On Wednesday, 7 September 2016 at 08:08:34 UTC, rikki cattermole 
wrote:
> On 07/09/2016 8:06 PM, Andre Pany wrote:
>>
>> Should I open an enhancement request?
>
> No.
> It works outside of the function (part of lookup rules).

I simplified my example too much. Yes in the example above I can 
move the alias
outside the main function. Here is a more complex example.

As I use the input parameter args in the alias, I cannot move the 
alias outside
the main function.

import std.algorithm;
bool fulfillsKeyPredicate(string s, string t) {return true;}

void main(string[] args)
{
	alias keyPredicateFilter = filter!(e => 
e.fulfillsKeyPredicate(args[0]));
	string[] arr;
	
	keyPredicateFilter(arr);
	arr.keyPredicateFilter;
}

Is there a workaround? Or is still a valid scenario to change the 
lookup rules?

Kind regards
André