🚚 Move SASL::ClientAdapter#host and #port

These were moved from SASL::ProtocolAdapters::Generic because they are
mostly specific to client implementation, not protocol specification.

Author: nevans

lib/net/imap/sasl/client_adapter.rb

@@ -79,6 +79,12 @@ def run_command(mechanism, initial_response = nil, &continuations_handler)
           command_proc.call(*args, &continuations_handler)
         end
 
+        # The hostname to which the client connected.
+        def host;             client.host end
+
+        # The destination port to which the client connected.
+        def port;             client.port end
+
         # Returns an array of server responses errors raised by run_command.
         # Exceptions in this array won't drop the connection.
         def response_errors; [] end

lib/net/imap/sasl/protocol_adapters.rb

@@ -9,8 +9,6 @@ module ProtocolAdapters
         module Generic
           def command_name;     "AUTHENTICATE" end
           def service;          raise "Implement in subclass or module" end
-          def host;             client.host end
-          def port;             client.port end
           def encode_ir(string) string.empty? ? "=" : encode(string) end
           def encode(string)    [string].pack("m0") end
           def decode(string)    string.unpack1("m0") end