/usr/share/zsh/4.3.11/functions
Edit: /usr/share/zsh/4.3.11/functions/_builtin (178B)
#compdef builtin
if (( $CURRENT > 2 )); then
shift words
(( CURRENT -- ))
_normal
else
local expl
_wanted commands expl 'builtin command' compadd "$@" -k builtins
fi