Add linker trimming tests for System.ComponentModel.TypeConverter IClassFactory2-related linker annotations

[layomia]

Specifically, add tests for this change https://github.com/dotnet/runtime/pull/37402/files#diff-64cb2690a89a375e7a29b0c7d3651ba5R704.

More info: #38066 (comment)

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