This one aligns var vs Type between netfx and netcore

[MichelZ]

This is aligning var vs the Type between netfx and netcore

Part of #2953

[cheenamalhotra]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.30%. Comparing base (9d5ca32) to head (65711ea).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
...nt/netfx/src/Microsoft/Data/SqlClient/TdsParser.cs	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2959      +/-   ##
==========================================
- Coverage   72.31%   72.30%   -0.02%     
==========================================
  Files         288      288              
  Lines       59660    59660              
==========================================
- Hits        43145    43136       -9     
- Misses      16515    16524       +9     

Flag	Coverage Δ
addons	92.58% <ø> (ø)
netcore	75.40% <ø> (-0.03%)	⬇️
netfx	70.68% <88.88%> (+<0.01%)	⬆️

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