fix(#3147): lowercased auto generated name

[maxonfjvipon]

Now auto generated name has the next format: auto-named-attr-at-X-Y where X - line, Y - position

Ref: #3147

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PR-Codex overview

This PR updates naming conventions in various test classes and YAML files to use auto-named-attr-at instead of OBJ. It also refactors XSL files to remove auto-generated name checks.

Detailed summary

• Updated naming conventions in test classes and YAML files
• Removed auto-generated name checks in XSL files

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[maxonfjvipon]

@yegor256 please check

[yegor256]

@rultor merge

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 21min)