[dmd-beta] beta for dmd 2.042

[Walter Bright]

Brad Roberts wrote:
> On 3/15/2010 9:07 PM, Walter Bright wrote:
>   
>> Trass3r wrote:
>>     
>>> Third issue:
>>> Somebody messed up std.perf. Doesn't measure anything anymore.
>>>
>>>       
>> That would be me. I failed to spot the difference between _qpc and _qtc
>> and thought I'd "optimize" the code. Thanks for setting the code straight.
>>     
>
> Such variable names are overly optimized.  They fail to convey meaning.
>
>   

Generally, it's a bad idea to have two variable names in the same scope 
that differ only in an inner letter. Letters at the beginning or end 
should be different. Humans often just don't see the inner letter 
differences.