func TestB(*testing.T) {}
-- b/default.pgo --
-- nopgo/nopgo.go --
package main
import _ "test/dep"
import _ "test/dep2"
func main() {}
-- nopgo/nopgo_test.go --
package main
import "testing"
func TestNopgo(*testing.T) {}
-- dep/dep.go --
package dep
import _ "test/dep3"
-- dep2/dep2.go --
package dep2
-- dep3/dep3.go --
package dep3
-- testdep/testdep.go --
package testdep
import _ "test/testdep2"