hir: BUGFIX: parameter slots were incorrectly allocated
hir: BUGFIX: parameter slots were incorrectly allocated

Parameter slots must be last in the local array, so we can leave yhem
uninitialized, but they were incorrectly allocated in the middle.

martindale/jscomp,lsm/jscomp,tmikov/jscomp,martindale/jscomp,lsm/jscomp,tmikov/jscomp,martindale/jscomp,ericlu88/jscomp,lsm/jscomp,ericlu88/jscomp,lsm/jscomp,martindale/jscomp,tmikov/jscomp,tmikov/jscomp,ericlu88/jscomp,tmikov/jscomp,lsm/jscomp,martindale/jscomp,ericlu88/jscomp,tmikov/jscomp,tmikov/jscomp,tmikov/jscomp,tmikov/jscomp,lsm/jscomp,lsm/jscomp,martindale/jscomp,ericlu88/jscomp,ericlu88/jscomp,ericlu88/jscomp,martindale/jscomp