src/cmd/6g/cgen.c
src/cmd/6g/gobj.c
src/cmd/6g/reg.c
. dropped unused assignments;
src/cmd/6g/gg.h
. added varargck pragmas;
src/cmd/6g/list.c
. adjusted print format for ulong casts;
src/cmd/6g/peep.c
. dropped redundant increment;

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4953049