C# Gen variant contains tag method (Build fails because of two members named "Tag")

This wit file contains a variant which has a method called tag. The generated class has also a variable called "Tag" the compiler throws an error because two members have the same name. Because the Tag variable isn't part of the wit file and just a variable from the generator this needs to be fixed.

Expected behavior would be that the generator calls his own variable in ways that it doesn't effect the defined method/variable from the WIT definition.

Start by locating the C# generator code that emits the variant's generated Tag member, then reproduce the WIT case where a variant also defines a tag method. Verify that the generated class compiles and preserves the WIT-defined member without a name collision.

Written by the indexing model from the issue text.