test(windows_foundation): improve coverage

[halildurmus]

Description

Related Issue

Type of Change

• [ ] ✨ feat -- New feature (non-breaking change which adds functionality)
• [ ] 🛠️ fix -- Bug fix (non-breaking change which fixes an issue)
• [ ] ❌ ! -- Breaking change (fix or feature that would cause existing functionality to change)
• [ ] 🧹 refactor -- Code refactor
• [ ] ✅ ci -- Build configuration change
• [ ] 📝 docs -- Documentation
• [x] 🧪 test -- Test
• [ ] 🗑️ chore -- Chore

[codecov[bot]]

Codecov Report

Merging #355 (f9badff) into main (1af8fa5) will increase coverage by 7.48%. The diff coverage is n/a.

:exclamation: Current head f9badff differs from pull request most recent head 249174a. Consider uploading reports for the commit 249174a to get more accurate results

@@            Coverage Diff             @@
##             main     #355      +/-   ##
==========================================
+ Coverage   75.66%   83.15%   +7.48%     
==========================================
  Files         105      106       +1     
  Lines        5322     5337      +15     
==========================================
+ Hits         4027     4438     +411     
+ Misses       1295      899     -396     

Files Changed	Coverage Δ
...ackages/windows_foundation/lib/src/winrt_enum.dart	100.00% <ø> (+27.27%)	:arrow_up:

... and 24 files with indirect coverage changes

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