[release/10.0] Fix issue 14259: Deserialization of the CodeTypeReference to generic type is incorrect

[aerworker]

Backport of #14260 to release/10.0
Fixes #14259

Proposed changes

• Fixed a regression where CodeDomSerializer doesn't deserialize generic types.

Customer Impact

• When a custom designer tries to deserialize a generic type the error is occuered

Regression?

• Yes

Risk

• Min

Test methodology

• custom example

Test environment(s)

8.0.23

Microsoft Reviewers: Open in CodeFlow

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.11127%. Comparing base (4e97eb7) to head (177de51).
⚠️ Report is 2 commits behind head on release/10.0.

Additional details and impacted files

@@                  Coverage Diff                   @@
##           release/10.0      #14268         +/-   ##
======================================================
+ Coverage      75.94991%   77.11127%   +1.16136%     
======================================================
  Files              3273        3273                 
  Lines            645033      645051         +18     
  Branches          47701       47701                 
======================================================
+ Hits             489902      497407       +7505     
+ Misses           145868      143971       -1897     
+ Partials           9263        3673       -5590     

Flag	Coverage Δ
Debug	77.11127% <100.00000%> (+1.16136%)	⬆️
integration	18.98773% <0.00000%> (?)
production	51.93500% <100.00000%> (+2.60043%)	⬆️
test	97.41010% <100.00000%> (+0.00011%)	⬆️
unit	49.34759% <100.00000%> (+0.01301%)	⬆️

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