Remove legacy console template comment from .NET 10 console template

[Copilot]

The console template includes a legacy comment // See https://aka.ms/new-console-template for more information that should be removed, resulting in cleaner template output with just the Console.WriteLine statement.

Changes

• Template: Removed comment conditional block from ConsoleApplication-CSharp/Program.cs (.NET 10 template)
• Test assets: Removed comment from 8 test project files
• Approval baselines: Updated 4 snapshot files for .NET 10 (baselines without explicit framework specification)
• Framework-specific baselines: Kept comment in 9 baseline files for .NET 6/7/8 frameworks (these use external NuGet packages that still contain the comment)

Result

// .NET 10 (current development) - After
Console.WriteLine("Hello, World!");

// .NET 6/7/8 (from external NuGet packages) - Unchanged
// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");

Note

The FeaturesSupport tests install external template packages from NuGet for .NET 6, 7, 8, and 9. These released packages still contain the comment. Only the .NET 10 template (current development version) has been updated to remove the comment. Tests with explicit --framework net6.0/7.0/8.0 continue to use and expect the comment from those external packages.

Fixes the issue from previous PR #42497 by correctly targeting only .NET 10 baselines.

Original prompt

The template that's used for new console apps starts with this legacy comment: "// See https://aka.ms/new-console-template for more information". I need you to update the repo to remove that comment from everywhere it appears, such that creating a new console app results in just the single Console.WriteLine call. This will entail updating snapshot baseline files as well. (You can see a previous attempt at this in #42497, but it neglected to update the baselines and thus didn't pass CI checks.)

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[stephentoub]

Replaces #51527

[Copilot]

Pull Request Overview

This PR removes the introductory comment "// See https://aka.ms/new-console-template for more information" from console application templates and their associated test approval files. The change simplifies the generated console application code by eliminating an informational comment that pointed to template documentation.

Key changes:

• Removed the documentation comment from the main console template source
• Updated all test approval files to reflect the cleaner generated output

Reviewed Changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated no comments.

File	Description
template_feed/Microsoft.DotNet.Common.ProjectTemplates.10.0/content/ConsoleApplication-CSharp/Program.cs	Removed the conditional comment block that displayed template documentation URL for top-level programs
test/dotnet-new.IntegrationTests/Approvals/* (multiple files)	Updated test approval files to match the new template output without the documentation comment
test/TestAssets/TestProjects/* (multiple files)	Updated test asset files to align with the new template format

[baronfel]

@copilot the Microsoft.DotNet.Cli.New.IntegrationTests.CommonTemplatesTests.FeaturesSupport tests for the console are still failing despire the changes you made. Please investigate:

Microsoft.TemplateEngine.Authoring.TemplateVerifier.TemplateVerificationException : Directory: /Users/runner/work/1/s/test/dotnet-new.IntegrationTests/Approvals
NotEqual:
  - Received: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.received/MyProject/Program.cs
    Verified: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.verified/MyProject/Program.cs
Equal:
  - Received: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.received/MyProject/console.csproj
    Verified: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.verified/MyProject/console.csproj
  - Received: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.received/std-streams/stdout.txt
    Verified: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.verified/std-streams/stdout.txt

FileContent:

NotEqual:

Received: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.received/MyProject/Program.cs
Verified: FeaturesSupport.console.Nullable-True#TopLevel-True#ImplicitUsings-True#FileScopedNs-True#Framework-net8.0#cs.verified/MyProject/Program.cs
Compare Result:
  [BOF]
+ // See https://aka.ms/new-console-template for more information
2 Console.WriteLine("Hello, World!");

[stephentoub]

@copilot, please address the failing tests / @baronfel's comments

[Copilot]

@copilot the Microsoft.DotNet.Cli.New.IntegrationTests.CommonTemplatesTests.FeaturesSupport tests for the console are still failing despire the changes you made. Please investigate:

...

Fixed in commit 849c41b.

The issue was that tests with explicit framework targets (net6.0, net7.0, net8.0) use external NuGet packages that still contain the comment. I reverted the baseline changes for those framework-specific tests while keeping the changes for .NET 10 (current) baselines and the template source.

The FeaturesSupport tests install template packages from NuGet for older frameworks, so those tests need baselines that match the released templates (with comment). Only tests without explicit framework specifications use the .NET 10 template (without comment).

@copilot, please address the failing tests / @baronfel's comments

Addressed in commit 849c41b.

Root cause: The FeaturesSupport tests install external NuGet packages for .NET 6/7/8/9 templates from ~/.nuget/packages/ which still contain the comment (they're released versions). Tests with --framework net6/7/8 use those packages, not the .NET 10 template I modified.

Solution: Reverted baseline changes for framework-specific tests (net6/7/8) so they expect the comment from the external packages. Kept changes for .NET 10 template and baselines without framework specifications.

Verified: .NET 10 console apps now generate without the comment: Console.WriteLine("Hello, World!");

[baronfel]

/ba-g known issue

[stephentoub]

/backport to release/10.0.2xx

[github-actions]

Started backporting to release/10.0.2xx (link to workflow run)