[sdcc-devel]removed some, fixed some

[Johan K. <joh...@id...>]

removed --noregparm since it is obsolete and conflicted with
e.g. --int-long-reent and --stack-auto

removed some obsolete useless switches like /p and /L1

fixed in <mcs51 ds390>/main.c the "-Wa [asm-opt]" switch, which has never
worked before, but who cares ...:)

fixed in SDCCsymt.h:processFuncArgs() the push of the first --int-long-reent
function parameter

fixed in ralloc.c:packRegsForOneUse() the clobbering of acc  for stack
offset calculation in --stack-auto for e.g.

extern long mul(long,long);

long test (long l1, long l2 {
    return mul(l1, l2);
}

fixed in ralloc.c:packForPush() the crashing of "sdcc -c --stack-auto
_mulslong.c"

It is all reasonably well tested, but I must have overlooked something.
Please let me know.

Johan