storing the hash multiplier instead of the hash value

[Walter Bright]

Fawzi Mohamed wrote:
> 
> On 23-mar-10, at 19:04, Andrei Alexandrescu wrote:
> 
>> What I'm pushing for as of now is to move the associative array 
>> definition from opacity into templated goodies in object_.d.
> 
> that would be nice, that is one the main reasons Steven implementation 
> is faster.
> It would be nice if this would be done by the compiler as rewriting the 
> calls as call to "normal" templates, i.e. to a specially named templated 
> struct (AArray for example) so that (syntactic sugar for the name aside) 
> that would be the same as a library implementation.
> This would have two advantages:
> - easy to replace the library implementation, as it would be even less 
> special
> - easy to replace the usage in one piece of code with another 
> implementation (well truth to be told that is rather easy also now)

D2 already allows this.