tree c3f4580c628a71f512b057b7f52987153cb88d74
parent 4cd1f4aac01184765818e0cebf02da454ccf6590
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1539783882 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1539783882 -0300

First "complete" implementation of to-be-closed variables

Still missing:
- handling of memory errors when creating upvalue (must run closing
method all the same)
- interaction with coroutines