How to turn an inout(Object) into a string

[tcak via Digitalmars-d-learn]

On Sunday, 26 April 2015 at 03:09:17 UTC, Meta wrote:
> The following code spits out pages of error messages, and it's 
> driving me insane. I know that Object.toString only has a 
> mutable variant, so how am I supposed to use writeln, toString, 
> etc. with an inout, const, or immutable object?
>
> void main(inout string[] args)
> {
> 	import std.stdio;
> 	
> 	immutable(Object) o = new immutable Object();
>         //Compile error: template instance
>         //std.format.formatGeneric!(
>         //        LockingTextWriter, immutable(Object),
>         //        char)
>         //error instantiating
> 	writeln(o);
> }

writeln( cast(Object)o );

Tada!!