For the lulz: ddmd vs libdparse lexer timings

[Daniel Murphy via Digitalmars-d]

"Iain Buclaw via Digitalmars-d"  wrote in message 
news:mailman.4146.1420457999.9932.digitalmars-d at puremagic.com...

> That is correct for user code, but not druntime C bindings.
>
> GDC can compile the test in 3568 thanks to the GCC backend providing
> the va_list struct a name (__va_list_tag).
>
> However it for sure cannot run the program though.  Only body-less
> declarations in core.stdc.* are rewritten to ref va_list.

Druntime and phobos rely on va_list converting to void*.  Should this
a) be allowed on platforms where va_list is a pointer
b) always be allowed
c) never be allowed
???