UFCS for struct opCall?

[Steven Schveighoffer]

On Mon, 08 Apr 2013 23:49:14 -0400, kenji hara <k.hara.pg at gmail.com> wrote:

> UFCS should just work only for 'functions'.
> 'foo' is not a function, rather it is a functor. So this is proper  
> behavior.

foo.opCall is a function.  When you invoke foo is synonymous with  
foo.opCall

The same should be true for delegates, function pointers, function  
templates, function aliases, alias this, etc.

-Steve