dmd 1.046 and 2.031 releases

[BCS]

Reply to Chad,

> Walter Bright wrote:
> 
>> The fall-through thing, though, is purely local and so much less of
>> an issue.
>> 
> huh?
> 
> These bugs always take me no less than 2 hours to find, unless I am
> specifically looking for fall-through bugs.
> 
> They are that evil kind of bug where you can stare at the exact lines
> of code that cause it and remain completely clueless until the
> epiphany hits.  This is no good, unless the compiler can be rewritten
> to induce epiphanies.
> 
> "much less of an issue"
> T_T

The much worse class of bugs is the ones that you can be staring at the location 
of the bug, have an epiphany about what the bug is and still not be able 
to tell if it is the case: the bug is here, but cause by a line of code that 
could be anywhere.