[Feature Request] MM should handle errors when setting schema data and tags

[ArcturusZhang]

For instance, in read function, currently mm will only generate the following code:

    d.Set("idle_timeout_in_minutes", natGatewayPropertiesFormat.IdleTimeoutInMinutes)

Ideally, this piece of code should be:

if err := d.Set("idle_timeout_in_minutes", natGatewayPropertiesFormat.IdleTimeoutInMinutes); err != nil {
    return fmt.Errorf("Error setting `idle_timeout_in_minutes`: %+v", err)
}

[HoukChen]

It seems that in Hashcorp's coding style, we only check errors when flatten functions are involved in Set. While in the above example, the field can be extracted directly.

Let's wait for more feedbacks from other reviewers about this situation.