public void ImplicitConversionFromNullableToValue()
 {
     RunInCompilerContextEnvironment(delegate
     {
         var nullableDouble     = TypeSystemServices.Map(typeof(double?));
         var doubleType         = TypeSystemServices.Map(typeof(double));
         var conversionOperator = TypeSystemServices.FindExplicitConversionOperator(nullableDouble, doubleType);
         Assert.IsNotNull(conversionOperator);
     });
 }