- Remove Dotted and DottedBoth values from tvar-env - Abstract env extension and lookup for tvar/index-env - Abstract index inference - Remove pointless parameterizations original commit: d570006db81dda68e69b7058fd3edfb68cc3d042
- rationalize naming of files - split files by env constructed original commit: 50f93b9ed7abeb1d4e687078cb5fef6976d008aa
original commit: fd1b20c93d195f236619a415e15c1b1dc8efde7f
original commit: 5f069ed4bb033531d39c8b268180f4ef70598c57