Trim analyzer produces unexpected IL2059 for nullable enum

[sbomer]

using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;

RuntimeHelpers.RunClassConstructor(typeof(Nullable<E>).TypeHandle);

enum E { }

This doesn't warn in ILLink, but does warn in the analyzer:

warning IL2059: Unrecognized value passed to the parameter 'type' of method 'System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(RuntimeTypeHandle)'. It's not possible to guarantee the availability of the target static constructor.

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