Support connect-simple

[majst01]

Hi Redpanda Team,

first of all, thanks very much for this compiler, love it.
We are building our api with connect-go, but with the "simple" flag to their compiler [1] which reduces the generic boiler plate code dramatically. With this enabled, the Interfaces your library generates are not compatible anymore.

The Interfaces connect-go simple generates look like:

// AuditServiceClient is a client for the metalstack.api.v2.AuditService service.
type AuditServiceClient interface {
	// Returns the audit trace with the specified UUID.
	Get(context.Context, *v2.AuditServiceGetRequest) (*v2.AuditServiceGetResponse, error)
	// Returns the list of audit traces.
	List(context.Context, *v2.AuditServiceListRequest) (*v2.AuditServiceListResponse, error)
}

In contrast, your compiler generates:

// AuditServiceClient is compatible with the grpc-go client interface.
type AuditServiceClient interface {
	Get(ctx context.Context, req *v2.AuditServiceGetRequest, opts ...grpc.CallOption) (*v2.AuditServiceGetResponse, error)
	List(ctx context.Context, req *v2.AuditServiceListRequest, opts ...grpc.CallOption) (*v2.AuditServiceListResponse, error)
}

I tried the following PR and thought i did it correct, but no luck. Maybe i am missing something how your compiler works.

Any help is appreciated.

[1] connectrpc/connect-go#851

[majst01]

Hi,

Is there any interest in getting this PR upstream?
Or can i add additional information to clarify the need for this?