better func names, fix ref counting and memory free, add tests

[cpunion]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 53.53535% with 46 lines in your changes missing coverage. Please review.

Project coverage is 49.95%. Comparing base (fe132e2) to head (e8c024e).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
object.go	51.42%	17 Missing ⚠️
dict.go	36.84%	12 Missing ⚠️
module.go	33.33%	6 Missing ⚠️
long.go	0.00%	3 Missing ⚠️
tuple.go	0.00%	3 Missing ⚠️
function.go	80.00%	1 Missing and 1 partial ⚠️
list.go	66.66%	2 Missing ⚠️
float.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #6      +/-   ##
==========================================
+ Coverage   42.14%   49.95%   +7.80%     
==========================================
  Files          15       15              
  Lines        1127     1161      +34     
==========================================
+ Hits          475      580     +105     
+ Misses        620      544      -76     
- Partials       32       37       +5     

Flag	Coverage Δ
unittests	49.95% <53.53%> (+7.80%)	⬆️

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