const vendor/golang.org/x/net/route.sizeofIfData64Darwin15

one use

	vendor/golang.org/x/net/route (current package)
		zsys_darwin.go#L90: 	sizeofIfData64Darwin15    = 0x80

The pages are generated with Golds v0.2.8-preview. (GOOS=darwin GOARCH=arm64)