feat: Fuzz Testing RParser

[joydeep049]

Closes #3329
This was my output.

[joydeep049]

The fuzz testing works perfectly on my local testing.
Furthermore, I think the errors in the windows tests are not even related to my code.
@terriko @anthonyharrison

[terriko]

Yes, there's some tests failing in main right now unrelated to your code: #3653

I won't be able to merge this until those are fixed, though, because of the settings on this repo. If you want to work on fixing them, feel free!

[terriko]

Updating branch to address failing tests.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (bf9afe9) 78.98% compared to head (d1fc5d2) 79.07%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3664      +/-   ##
==========================================
+ Coverage   78.98%   79.07%   +0.09%     
==========================================
  Files         797      797              
  Lines       11927    11927              
  Branches     1602     1602              
==========================================
+ Hits         9420     9431      +11     
+ Misses       2075     2058      -17     
- Partials      432      438       +6     

Flag	Coverage Δ
longtests	73.73% <ø> (-4.58%)	⬇️
win-longtests	77.12% <ø> (+0.27%)	⬆️

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[terriko]

Thanks! Looks like our tests are back to normal and I can merge this. Thank you for your patience!