visitor-as 0.6.0 appears to be incompatible with assemblyscript 0.19+

[achille-roussel]

npm install reports this error when using visitor-as 0.6.0 with assemblyscript 0.19+:

npm WARN Could not resolve dependency:
npm WARN peer assemblyscript@"^0.18.31" from visitor-as@0.6.0
npm WARN node_modules/visitor-as
npm WARN   dev visitor-as@"^0.6.0" from the root project
npm WARN   1 more (@as-covers/transform)
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: ...
npm ERR! Found: assemblyscript@0.19.20
npm ERR! node_modules/assemblyscript
npm ERR!   dev assemblyscript@"^0.19.20" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer assemblyscript@"^0.18.31" from visitor-as@0.6.0
npm ERR! node_modules/visitor-as
npm ERR!   dev visitor-as@"^0.6.0" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

[achille-roussel]

I worked around the issue by running the following:

$ npm install --save-dev --force visitor-as

Tho it seems code generation results in duplicate symbols now:

> asc assembly/test.ts --target test

ERROR TS2300: Duplicate identifier '__encoded'.

 __encoded: string = ''
 ~~~~~~~~~
 in assembly/test.ts(1,1)

 __encoded: string = ''
 ~~~~~~~~~
 in assembly/index.ts(1,1)
 
 ...

[jtenner]

This is still an issue. It's preventing me from getting a lot of work done. Can I help somehow?