i++
	}
	return i + int(pos.Col()-1) // columns are 1-based
}

func TestIssue8518(t *testing.T) {
	imports := make(testImporter)
	conf := Config{
		Error:    func(err error) { t.Log(err) }, // don't exit after first error
		Importer: imports,
	}
	makePkg := func(path, src string) {
		imports[path], _ = conf.Check(path, []*syntax.File{mustParse(src)}, nil) // errors logged via conf.Error
	}