MASA coherence and deindex_lead fixes to align with BASOP
Merge updates into ivas-float-update branch. The idea is to use the branch as the floating point reference rather than a tag, since more fixes may come as the BASOP conversion progresses.
Merge updates into ivas-float-update branch. The idea is to use the branch as the floating point reference rather than a tag, since more fixes may come as the BASOP conversion progresses.