tree c7e6398095afccc9987ed42598477094b6ee2aa6
parent b114c7d4871051cbdd7af185a61f35fe4028da79
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1539006127 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1539006127 -0300

Towards "to closed" local variables

Start of the implementation of "scoped variables" or "to be closed"
variables, local variables whose '__close' (or themselves) are called
when they go out of scope. This commit implements the syntax, the
opcode, and the creation of the corresponding upvalue, but it still
does not call the finalizations when the variable goes out of scope
(the most important part).

Currently, the syntax is 'local scoped name = exp', but that will
probably change.