walk(p1)
		}
		all = append(all, p)
	}
	walkTest := func(root *Package, path string) {
		var stk ImportStack
		p1, err := loadImport(ctx, opts, nil, path, root.Dir, root, &stk, root.Internal.Build.TestImportPos[path], ResolveImport)
		if err != nil && root.Error == nil {
			// Assign error importing the package to the importer.
			root.Error = err
			root.Incomplete = true
		}
		if p1.Error == nil {