fix: enums with paramType=body got parsed incorrectly

[hohobilly]

Describe the PR
Attempt to fix the issue #1608

Relation issue
#1608

Additional context
Adding a test case with the commentLine expression similar to the one suggested in the issue.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01 🎉

Comparison is base (fe971d2) 83.72% compared to head (6654440) 83.74%.

❗ Current head 6654440 differs from pull request most recent head 6d6791c. Consider uploading reports for the commit 6d6791c to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1625      +/-   ##
==========================================
+ Coverage   83.72%   83.74%   +0.01%     
==========================================
  Files          19       19              
  Lines        3767     3771       +4     
==========================================
+ Hits         3154     3158       +4     
  Misses        524      524              
  Partials       89       89              

Impacted Files	Coverage Δ
operation.go	95.06% <100.00%> (+0.02%)	⬆️

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[ubogdan]

@hohobilly Thanks for your contribution!