Fixes #12605 - Update description of instantiation syntax

[sdwheeler]

PR Summary

Update description of instantiation syntax

• Fixes AB#546876
• Fixes The Default PowerShell Constructor #12605

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributor's guide.
• Style: This PR adheres to the style guide.

[learn-build-service-prod]

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[Copilot]

Pull request overview

This PR updates the documentation for PowerShell class instantiation syntax to provide a more accurate and generic description. The changes clarify that the syntax supports type conversion for various value types, not just hashtables.

Changes:

• Updated the instantiation syntax description from hashtable-specific to generic convertable-value-type
• Added a new Example 2 demonstrating instantiation syntax with both hashtable and array examples
• Renumbered subsequent examples (Example 2→3, Example 3→4, Example 4→5)

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 8 comments.

File	Description
reference/7.6/Microsoft.PowerShell.Core/About/about_Classes.md	Updated syntax documentation, added instantiation example, renumbered examples
reference/7.5/Microsoft.PowerShell.Core/About/about_Classes.md	Updated syntax documentation, added instantiation example, renumbered examples
reference/7.4/Microsoft.PowerShell.Core/About/about_Classes.md	Updated syntax documentation, added instantiation example, renumbered examples
reference/5.1/Microsoft.PowerShell.Core/About/about_Classes.md	Updated syntax documentation, added instantiation example, renumbered examples

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[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit c003d9b:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/5.1/Microsoft.PowerShell.Core/About/about_Classes.md	✅Succeeded	View (powershell-5.1)
reference/7.4/Microsoft.PowerShell.Core/About/about_Classes.md	✅Succeeded	View (powershell-7.4)
reference/7.5/Microsoft.PowerShell.Core/About/about_Classes.md	✅Succeeded	View (powershell-7.5)
reference/7.6/Microsoft.PowerShell.Core/About/about_Classes.md	✅Succeeded	View (powershell-7.6)

For more details, please refer to the build report.