parse.y:5576
static int
local_id(id)
    ID id;
{
    int i, max;

    if (lvtbl == 0) return Qfalse;
    for (i=3, max=lvtbl->cnt+1; i<max; i++) {
	if (lvtbl->tbl[i] == id) return Qtrue;
    }
    return Qfalse;
}
