With this commit, we no longer see an error if we pass
`--styleCheck:error` when compiling a file that contains `import sugar`
or `import std/with`.
The problem was that those modules (and only those modules) import
`std/private/underscored_calls`, which contained a styleCheck issue:
its spelling of `nnkArgList` didn't match the `nnkArglist` spelling in
`macros.nim`.
This commit fixes the issue by renaming `nnkArgList` to `nnkArglist`
repo-wide. The other way around would be a breaking change for code that
used `nnkArglist` and `--styleCheck:error`.
Fixes: #16174
* new .gensym implementation
* make astspec test green again
* introduce a --useVersion switch to group compatibility switches
* fixes#10180
* fixes#11494
* fixes#11483
* object constructor fields and named parameters are also not gensym'ed
* disabled broken package