method name '$invoke' is used to retrieve method level configs like 'retries' or 'loadbalance' in generic service call.

[awayings]

What happened:
failover_cluster_invoker/failback_cluster_invoker/zone_aware_cluster_invoker use method name '$invoke' to retrieve method level configs like 'retries' or 'loadbalance' in generic service call.
What you expected to happen:
use the real method name to retrieve configs for generic service call.
How to reproduce it (as minimally and precisely as possible):
custom 'retries' or 'locabalance' in server side config. launch a request by genericservice client.
Anything else we need to know?:

[LaurenceLiZhixin]

cc @justxuewei

[justxuewei]

I'll fix that after adaptive service feature is finished.

[luky116]

fixed by:https://github.com/apache/dubbo-go/pull/1674/files