go/src/cmd/compile/internal/types2/importer_test.go

func defaultImporter() types2.Importer { … }

type gcimports …

func (m *gcimports) Import(path string) (*types2.Package, error) { … }

func (m *gcimports) ImportFrom(path, srcDir string, mode types2.ImportMode) (*types2.Package, error) { … }