Trick hide test file go

https://stackoverflow.com/questions/55279029/in-goland-how-can-i-hide-test-files-underneath-each-non-test-file

A quick reference is to do the following:

• under the project view window
• click on the cogwheel
• select File Nesting…
• click on the “Child file suffix” under “.go” extension
• add “_test.go” to the list and click OK

ide IntelliJ