src/vs/workbench/contrib/terminal/browser/terminalInstanceService.ts/TerminalInstanceService/getXtermUnicode11Constructor
class TerminalInstanceService:	async getXtermUnicode11Constructor(): Promise<typeof XTermUnicode11Addon> {
		if (!Unicode11Addon) {
			Unicode11Addon = (await import('xterm-addon-unicode11')).Unicode11Addon;
		}
		return Unicode11Addon;
	}