[aida] DNU and Stack Reification Timing Tests

[Holger Kleinsorgen]

> The results:
> 
> direct:  1.0  (this is the base measure)
> indirect: 5.7 (that is 5.7 times longer than direct)
> reification: 40.1 (that is 40.1 times longer than a direct message call

VisualWorks 7.6, Win2K, Intel Q6600:

direct:  1.0
indirect:  13.4
reification:  46.8
active process:  40.4

The active process test:

EsTimingTest>>activeProcess
   ^ Processor activeProcess environmentAt: #WebApplication