[rfa] symbol hashing, part 2/n - ALL_BLOCK_SYMBOLS

[Daniel Berlin]

>
> Your second commit is this new (ULGH) macro.  The macro (ULGH) 
> shouldn't break anything but it is however still a (ULGH) macro.  Just 
> include the extra tweeks you found.
>
> (If you haven't figured it out, breakpoint.h has a similar (ULGH) macro 
> so I'm biteing my tongue on this change :-)
>
Unfortunately, it can't be done without a macro here, without 
introducing about 30 new functions, spread out across a whole bunch of 
files.
The real problem is so many things feel an uncontrollable urge to walk 
an entire block (or the entire symbol table).

> Andrew
>