Coverlet Tracker Missing CompilerGeneratedAttribute

[Werebunny]

Describe the bug
The generated coverage tracker is no longer (or never actually was) marked with the CompilerGeneratedAttribute.

To Reproduce
Here's a sample test that'll fail. Replace 'typeof(ToolSet)' with your own and use whatever test framework you wish:

[Fact]
internal static void FindCoverletTrackerIssue()
{
    Type tracker = Assembly
        .GetAssembly(typeof(ToolSet))
        .GetTypes()
        .Single(t =>
            t.Namespace?.StartsWith(
                "Coverlet.Core.Instrumentation.Tracker",
                StringComparison.Ordinal
            ) ?? false
        );
    tracker.IsDefined(typeof(CompilerGeneratedAttribute), false).Assert().Is(true);
}

Expected behavior
This test should pass. Setting 'true' for inherited attributes doesn't change the result.

Actual behavior
The test fails. In fact, the generated static class "Coverlet.Core.Instrumentation.Tracker.{assemblyName}_{guid}" contains no defined custom attributes.

Configuration (please complete the following information):
Coverlet version: 8.0.0 (bug also found on 6.0.4) via dotnet test --collect:"XPlat Code Coverage"
Library .NET versions: .NET 10 and .NET Standard 2.0
Test .NET versions: .NET 10, .NET 9 and .NET 4.8
OS: Mac and Windows Server 2025

Additional context
The CompilerGeneratedAttribute was supposedly added as part of #1229 due to issue #1191.
It is not clear to me that this change ever actually added the CompilerGeneratedAttribute to the resulting created Tracker however.

❗ Please also read Known Issues

[Bertk]

coverlet/src/coverlet.core/Instrumentation/ModuleTrackerTemplate.cs

Line 21 in e1ada73

[CompilerGenerated]

Please note: the CompilerGeneratedAttribute is still in the source file.