[eval2] Lift the environment into a special variable.
[eval2] Fix the EVAL-CLOSURE type specification.
[eval2] Fix a typo.
[eval2] Make the package declaration for non-SBCL platforms more accurate.
[eval2] Fix refactoring bugs.
[eval2] Begin transformation into a pseudo-bytecode compiler.
[eval2] LET: Implement dynamic binding correctly.
[eval2] Reimplement LET*, fix LET.
[eval2] Various fixes and improvements.
[eval2] Reimplement FLET, LABELS.
[eval2] Reimplement BLOCK, RETURN-FROM, TAGBODY, GO, MULTIPLE-VALUE-BIND.
[eval2] Reimplement LAMBDA (compilation part).
[eval2] Fix typos.
[eval2] Optimize LET.
[eval2] Reimplement local function references and calls (compilation part).
[eval2] Implement the VM.
[eval2] VM: Reject multiple-value-setq.
[eval2] Fix %ENVSET.
[eval2] Fix SETQ.
[eval2] VM: Implement %VARPUSH.