src/vs/editor/contrib/linesOperations/browser/linesOperations.ts/MoveLinesUpAction/constructor
class MoveLinesUpAction:	constructor() {
		super(false, {
			id: 'editor.action.moveLinesUpAction',
			label: nls.localize('lines.moveUp', "Move Line Up"),
			alias: 'Move Line Up',
			precondition: EditorContextKeys.writable,
			kbOpts: {
				kbExpr: EditorContextKeys.editorTextFocus,
				primary: KeyMod.Alt | KeyCode.UpArrow,
				linux: { primary: KeyMod.Alt | KeyCode.UpArrow },
				weight: KeybindingWeight.EditorContrib
			},
			menuOpts: {
				menuId: MenuId.MenubarSelectionMenu,
				group: '2_line',
				title: nls.localize({ key: 'miMoveLinesUp', comment: ['&& denotes a mnemonic'] }, "Mo&&ve Line Up"),
				order: 3
			}
		});
	}