Expanding CTFE code during compilation

[Steven Schveighoffer]

On 7/19/22 8:33 PM, Azi Hassan wrote:
> 
> Nice, a compile time console.log. Thanks a lot, this will come in handy. 
> I wonder if it can be combined with version(debug) to only run the 
> pragma line if compiled with -g, this way we can keep the printEnum! 
> line as it is. Then again, the code would become polluted by debugging 
> logic

Yep:

```d
debug template printEnum(...) {
   ... // everything we already did
}
else
enum printEnum(alias x) = x;
```

There's a slight bloat in the compiler symbol table when  but other than 
that it should be effective.

-Steve