var golang.org/x/tools/internal/event/keys.End

5 uses

	golang.org/x/tools/internal/event/keys (current package)
		standard.go#L15: 	End = NewTag("end", "a span end marker")

	golang.org/x/tools/internal/event
		event.go#L96: 			keys.End.New(),
		event.go#L111: 	return ev.Label(0).Key() == keys.End

	golang.org/x/tools/internal/event/core
		fast.go#L60: 			keys.End.New(),
		fast.go#L75: 			keys.End.New(),

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)