'Build data driven tests' section does not mention the user-defined helper classes 'CodeFixVerifier' and 'DiagnosticVerifier'

[vamuzumd]

The section 'Build data driven tests' has code snippets for methods like 'VerifyCSharpDiagnostic(testCode)' and 'VerifyCSharpFix(test, fixTest);' belonging to user-defined class 'DiagnosticVerifier.cs' which are misconstrued to be built-in methods until I stumbled upon the compilation errors followed by Github source code for MakeConst.
Perhaps a pointer github link to helper classes 'CodeFixVerifier' and 'DiagnosticVerifier' will be useful and time-saving while explaining these methods.

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Document Details

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• ID: 6e3fc905-7aa1-7f5e-9bfe-fbcef461ad5e
• Version Independent ID: a286e20b-1e43-dc57-e0fb-5a9dee7ec3f6
• Content: Tutorial: Write your first analyzer and code fix
• Content Source: docs/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix.md
• Product: dotnet-csharp
• Technology: csharp-roslyn
• GitHub Login: @BillWagner
• Microsoft Alias: wiwagn

[BillWagner]

Thanks @vamuzumd for pointing this out. I've added it to our backlog for when we next update this article.