expand scope vmap sorting -> all vmaps; do final vmap bakes; do first pass of scope (1 scope -> many locals, many voffs) layout / baking

src/base/base_thread_context.c

@@ -94,20 +94,6 @@ tctx_lane_barrier_wait(void)
   ProfEnd();
 }
 
-internal Rng1U64
-tctx_lane_idx_range_from_count(U64 count)
-{
-  U64 main_idxes_per_lane = count/lane_count();
-  U64 leftover_idxes_count = count - main_idxes_per_lane*lane_count();
-  U64 leftover_idxes_before_this_lane_count = Min(lane_idx(), leftover_idxes_count);
-  U64 lane_base_idx = lane_idx()*main_idxes_per_lane + leftover_idxes_before_this_lane_count;
-  U64 lane_base_idx__clamped = Min(lane_base_idx, count);
-  U64 lane_opl_idx = lane_base_idx__clamped + main_idxes_per_lane + ((lane_idx() < leftover_idxes_count) ? 1 : 0);
-  U64 lane_opl_idx__clamped = Min(lane_opl_idx, count);
-  Rng1U64 result = r1u64(lane_base_idx__clamped, lane_opl_idx__clamped);
-  return result;
-}
-
 //- rjf: thread names
 
 internal void