/usr/share/gocode/ is in golang-golang-x-oauth2-dev 0.0~git20180207.543e378-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/
/usr/share/gocode/src/golang.org/
/usr/share/gocode/src/golang.org/x/
/usr/share/gocode/src/golang.org/x/oauth2/
/usr/share/gocode/src/golang.org/x/oauth2/amazon/
/usr/share/gocode/src/golang.org/x/oauth2/amazon/amazon.go
/usr/share/gocode/src/golang.org/x/oauth2/bitbucket/
/usr/share/gocode/src/golang.org/x/oauth2/bitbucket/bitbucket.go
/usr/share/gocode/src/golang.org/x/oauth2/clientcredentials/
/usr/share/gocode/src/golang.org/x/oauth2/clientcredentials/clientcredentials.go
/usr/share/gocode/src/golang.org/x/oauth2/clientcredentials/clientcredentials_test.go
/usr/share/gocode/src/golang.org/x/oauth2/example_test.go
/usr/share/gocode/src/golang.org/x/oauth2/facebook/
/usr/share/gocode/src/golang.org/x/oauth2/facebook/facebook.go
/usr/share/gocode/src/golang.org/x/oauth2/fitbit/
/usr/share/gocode/src/golang.org/x/oauth2/fitbit/fitbit.go
/usr/share/gocode/src/golang.org/x/oauth2/foursquare/
/usr/share/gocode/src/golang.org/x/oauth2/foursquare/foursquare.go
/usr/share/gocode/src/golang.org/x/oauth2/github/
/usr/share/gocode/src/golang.org/x/oauth2/github/github.go
/usr/share/gocode/src/golang.org/x/oauth2/heroku/
/usr/share/gocode/src/golang.org/x/oauth2/heroku/heroku.go
/usr/share/gocode/src/golang.org/x/oauth2/hipchat/
/usr/share/gocode/src/golang.org/x/oauth2/hipchat/hipchat.go
/usr/share/gocode/src/golang.org/x/oauth2/internal/
/usr/share/gocode/src/golang.org/x/oauth2/internal/client_appengine.go
/usr/share/gocode/src/golang.org/x/oauth2/internal/doc.go
/usr/share/gocode/src/golang.org/x/oauth2/internal/oauth2.go
/usr/share/gocode/src/golang.org/x/oauth2/internal/token.go
/usr/share/gocode/src/golang.org/x/oauth2/internal/token_test.go
/usr/share/gocode/src/golang.org/x/oauth2/internal/transport.go
/usr/share/gocode/src/golang.org/x/oauth2/jws/
/usr/share/gocode/src/golang.org/x/oauth2/jws/jws.go
/usr/share/gocode/src/golang.org/x/oauth2/jws/jws_test.go
/usr/share/gocode/src/golang.org/x/oauth2/jwt/
/usr/share/gocode/src/golang.org/x/oauth2/jwt/example_test.go
/usr/share/gocode/src/golang.org/x/oauth2/jwt/jwt.go
/usr/share/gocode/src/golang.org/x/oauth2/jwt/jwt_test.go
/usr/share/gocode/src/golang.org/x/oauth2/linkedin/
/usr/share/gocode/src/golang.org/x/oauth2/linkedin/linkedin.go
/usr/share/gocode/src/golang.org/x/oauth2/mailru/
/usr/share/gocode/src/golang.org/x/oauth2/mailru/mailru.go
/usr/share/gocode/src/golang.org/x/oauth2/mediamath/
/usr/share/gocode/src/golang.org/x/oauth2/mediamath/mediamath.go
/usr/share/gocode/src/golang.org/x/oauth2/microsoft/
/usr/share/gocode/src/golang.org/x/oauth2/microsoft/microsoft.go
/usr/share/gocode/src/golang.org/x/oauth2/oauth2.go
/usr/share/gocode/src/golang.org/x/oauth2/oauth2_test.go
/usr/share/gocode/src/golang.org/x/oauth2/odnoklassniki/
/usr/share/gocode/src/golang.org/x/oauth2/odnoklassniki/odnoklassniki.go
/usr/share/gocode/src/golang.org/x/oauth2/paypal/
/usr/share/gocode/src/golang.org/x/oauth2/paypal/paypal.go
/usr/share/gocode/src/golang.org/x/oauth2/slack/
/usr/share/gocode/src/golang.org/x/oauth2/slack/slack.go
/usr/share/gocode/src/golang.org/x/oauth2/spotify/
/usr/share/gocode/src/golang.org/x/oauth2/spotify/spotify.go
/usr/share/gocode/src/golang.org/x/oauth2/token.go
/usr/share/gocode/src/golang.org/x/oauth2/token_test.go
/usr/share/gocode/src/golang.org/x/oauth2/transport.go
/usr/share/gocode/src/golang.org/x/oauth2/transport_test.go
/usr/share/gocode/src/golang.org/x/oauth2/twitch/
/usr/share/gocode/src/golang.org/x/oauth2/twitch/twitch.go
/usr/share/gocode/src/golang.org/x/oauth2/uber/
/usr/share/gocode/src/golang.org/x/oauth2/uber/uber.go
/usr/share/gocode/src/golang.org/x/oauth2/vk/
/usr/share/gocode/src/golang.org/x/oauth2/vk/vk.go
/usr/share/gocode/src/golang.org/x/oauth2/yahoo/
/usr/share/gocode/src/golang.org/x/oauth2/yahoo/yahoo.go
/usr/share/gocode/src/golang.org/x/oauth2/yandex/
/usr/share/gocode/src/golang.org/x/oauth2/yandex/yandex.go