Parallel Rogue-like benchmark

[Dicebot]

On Thursday, 7 November 2013 at 14:27:59 UTC, Daniel Davidson 
wrote:
> Regarding what is idiomatic D, isn't `immutable x = rnd.next % 
> levelSize;` pedantic.
> Why not just go with `const x = rnd.next % levelSize;`

I actually prefer usage of `immutable` by default for value types 
because it is likely to cause a compilation error if later code 
changes to stop conforming value semantics. `const` version is 
likely to still compile with wrong assumption.