src/vs/editor/browser/services/bulkEditService.ts/ResourceTextEdit/lift
class ResourceTextEdit:	static lift(edit: IWorkspaceTextEdit): ResourceTextEdit {
		if (edit instanceof ResourceTextEdit) {
			return edit;
		} else {
			return new ResourceTextEdit(edit.resource, edit.textEdit, edit.versionId, edit.metadata);
		}
	}