Poll: what should this program do?

[Paul Backus]

Here's a weird little program that came up in a recent Discord 
discussion:

     template fun(T)
     {
         string fun(T) => fun("hi");
         string fun(string) => "inner";
     }
     string fun(string) => "outer";

     void main()
     {
         import std.stdio;
         writeln(fun(123));
     }


**What SHOULD this program do?**

1. Print "inner".
2. Print "outer".
3. It shouldn't compile.

**What do you think it ACTUALLY does?**

1. Print "inner".
2. Print "outer".
3. It doesn't compile.