var go/build.Default

4 uses

	go/build (current package)
		build.go#L277: var Default Context = defaultContext()
		build.go#L1469: 	return Default.Import(path, srcDir, mode)
		build.go#L1474: 	return Default.ImportDir(dir, mode)

	golang.org/x/tools/internal/gcimporter
		gcimporter.go#L56: 				cmd.Dir = build.Default.GOROOT