[Issue 19117] Alias this messes up call to normal function

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19117

--- Comment #1 from RazvanN <razvan.nitu1305 at gmail.com> ---
(In reply to RazvanN from comment #0)
> struct A
> {
>     immutable(A) fun() { return  immutable A(); }
>     ref A fun2(ref A a)  { return this; }                                   
> 
> 
>     alias fun this;    // line 6
> }
> 
> void main()
> {
>     A a, b;
>     b.fun2(a);
> }
> 
> aliasthisbug.d(12): Error: function aliasthisbug.A.fun2(ref A a) is not
> callable using argument types (A)
> aliasthisbug.d(12):        cannot pass argument a of type A to parameter ref
> A a
> 
> Comment line 6 an the error disappears.

Also, changing the signature of fun2 to : ref A fun2(A a) makes the example
compile

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