[Issue 23621] New: Implicitly convert function to delegate

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23621

          Issue ID: 23621
           Summary: Implicitly convert function to delegate
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: msnmancini at hotmail.com

```d
import std.stdio;
int add(int delegate() a, int delegate() b){return a()+b();}
int getNumber(){return 50;}
void main()
{
    writeln(add(&getNumber, &getNumber));
}
```

This currently does not compile,  so it is needed tu wrap

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