Gogland EAP 17: Type Hierarchy, Call Hierarchy, Parameter Hints, Vendor Scope, and More
https://blog.jetbrains.com/go/2017/10/26/gogland-eap-17-type-hierarchy-call-hierarchy-parameter-hints-vendor-scope-and-more/
https://blog.jetbrains.com/go/2017/10/26/gogland-eap-17-type-hierarchy-call-hierarchy-parameter-hints-vendor-scope-and-more/