The new `subtype.AttributeTransformerInterceptor` can return an error if
it fails to transform the attributes. This is mainly if invalid
attribute fields were included for a particular subtype. This error case
used to be checked in the grpc service handler functions. However, now
that it is happening in the interceptor, the `errorInterceptor` needs to
be moved up in the stack so that it will process the response of the new
transformation interceptor.
The `errorInterceptor` used to be after the `auditRequestInterceptor`
and prior to the `auditResponseInterceptor`, meaning that the
`auditResponseInterceptor` would have access to the result of the
`errorInterceptor`. But it seems the `auditRequestInterceptor` does not
use or need any of the headers set by the `errorInterceptor` so it
should be safe to move the `errorInterceptor`. This is important since
the `subtype.AttributeTransformerInterceptor` needs to be before the
audit interceptors in the stack to properly transform requests/responses
so they can be audited with the complete classification information.
Timothy Messier
1af803780c