allowed to create xerrors.TransportError() from grpc status error + r…

[asmyasnikov]

…efactoring of xerrors tests

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Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Other information

[github-actions]

summary

Base version: v3.53.5-0.20231023081815-461b0fea1656 (master)
Cannot suggest a release version.
Can only suggest a release version when compared against the most recent version of this major: v3.53.4.

[github-actions]

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🌋 Here are results of SLO test for Go SDK native:

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🌋 Here are results of SLO test for Go SDK xorm:

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (461b0fe) 66.25% compared to head (7a02231) 66.32%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #871      +/-   ##
==========================================
+ Coverage   66.25%   66.32%   +0.07%     
==========================================
  Files         253      254       +1     
  Lines       24004    24025      +21     
==========================================
+ Hits        15903    15935      +32     
+ Misses       7267     7256      -11     
  Partials      834      834              

Flag	Coverage Δ
	53.04% <20.00%> (+0.04%)	⬆️
go-1.17.x	64.82% <100.00%> (-0.11%)	⬇️
go-1.20.x	66.22% <100.00%> (+0.03%)	⬆️
go-1.21.x	66.05% <100.00%> (-0.03%)	⬇️
integration	53.04% <20.00%> (+0.04%)	⬆️
macOS	39.28% <100.00%> (-0.56%)	⬇️
ubuntu	39.28% <100.00%> (-0.58%)	⬇️
unit	39.36% <100.00%> (-0.59%)	⬇️
windows	39.31% <100.00%> (-0.58%)	⬇️
ydb-22.5	52.66% <20.00%> (+0.07%)	⬆️
ydb-23.1	52.77% <20.00%> (+0.07%)	⬆️
ydb-23.2	52.70% <20.00%> (+0.04%)	⬆️
ydb-23.3	52.80% <20.00%> (+0.04%)	⬆️

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Files	Coverage Δ
internal/xerrors/transport.go	88.49% <100.00%> (+6.49%)	⬆️
internal/xtest/current_file_line.go	100.00% <100.00%> (ø)

... and 7 files with indirect coverage changes

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