anchor.diff:                            (f : FSharpMemberOrFunctionOrValue)
                             (argTypes: FSharpType list)
                             (exprs : FSharpExpr list) : (cerl.Exps * Ctx) =
  -        let fe = f.EnclosingEntity
  +        let fe = f.EnclosingEntity.Value
           let typeHasMfv (e: FSharpExpr) =
               if e.Type.HasTypeDefinition then
                   e.Type.TypeDefinition.MembersFunctionsAndValues
  
positive.code:         match decl with
          | MemberOrFunctionOrValue (HasModCallAttribute(args, memb),
                                     Parameters ps, _expr) ->
              let ee = memb.EnclosingEntity
              let ctx = Ctx.init ee.FullName
              let functionName = functionName memb
              let e1 = litAtom ((snd args.[0]) :?> string) |> constr
  
negative.code: 
      /// used for member
      let qualifiedMember (f : FSharpMemberOrFunctionOrValue) =
          let fe = f.EnclosingEntity.Value
          let name = f.LogicalName
          let eeFullName = fe.FullName
          let eeName = fe.CompiledName
  