Remaining impls to combine eval-ast/macroexpand into eval

[kanaka]

Most implementations have been converted via #592. The following are the remaining implementations to convert:

• basic
• chuck
• crystal
• fantom
• hy
• io
• janet
• jq
• latex3
• livescript
• lua
• matlab
• objc
• plpgsql
• plsql (not testable in CI)
• powershell
• purs/purescript (in progress: Merge eval and evalAST in purescript implementation #631)
• rexx
• rpython
• rust
• scala
• swift3
• swift4
• swift6 (was swift5)
• vala
• vbs
• wasm
• xslt
• zig (will need to resolve zig: deallocate a varargs function after applying it #591 first)

Swift 2 was originally part of the list but has since been removed from the repo: #688

[kanaka]

Rust complete: #659

[kanaka]

wasm completed with #661

[asarhaddon]

What are the remaining issues with awk bbc-basic elixir erlang forth vhdl ? Commit 0338927 was supposed to include them.
Also, I suggest to add a commet in the zig line refering to #591.

[kanaka]

@asarhaddon You're right, I did a grep for eval_ast and macroexpand and didn't look closely enough at the code or review your commit again when making this list. I've added a comment to zig.

[kanaka]

purs/purescript fixed in #631

[kanaka]

Powershell updated in #669

[kanaka]

lua was fixed in 9a22e8a

[kanaka]

objc updated in #671

[kanaka]

zig problem and eval_ast merge completed here: #591