src/vs/workbench/api/common/extHostCommands.ts/CommandsConverter/_executeConvertedCommand
class CommandsConverter:	private _executeConvertedCommand<R>(...args: any[]): Promise<R> {
		const actualCmd = this.getActualCommand(...args);
		this._logService.trace('CommandsConverter#EXECUTE', args[0], actualCmd ? actualCmd.command : 'MISSING');

		if (!actualCmd) {
			return Promise.reject('actual command NOT FOUND');
		}
		return this._commands.executeCommand(actualCmd.command, ...(actualCmd.arguments || []));
	}