go/src/internal/coverage/pkid.go

var rtPkgs …

const NotHardCoded …

// HardCodedPkgID returns the hard-coded ID for the specified package
// path, or -1 if we don't use a hard-coded ID. Hard-coded IDs start
// at -2 and decrease as we go down the list.
func HardCodedPkgID(pkgpath string) int { … }