Go invalid verb parameter error message could be improved

[matt2e]

This error happens for a bunch of reasons. It'd be good if we could make it clearer:
unsupported verb parameter type; verbs must have the signature func(Context, Request?, Resources...)
It happens a lot when renaming verbs or topics but it could be a lot clearer to the user.

• It'd be good to include the unsupported type in the text

Causes that we should be able to detect and craft a more specific message for:

Missing import
If you put time.TimeClient as a parameter, you may have forgotten to import time

Parameter Order
If the issue is that you put a type after a resource and theres no existing request type, we should suggest a new ordering to the user

Client name not right
If the resource type looks like a client (ie modulepackage.___Client) but does not match any known clients, we should explain that.