src/vs/workbench/api/common/extHostOutput.ts/ExtHostOutputService/createOutputChannel
class ExtHostOutputService:	createOutputChannel(name: string): vscode.OutputChannel {
		name = name.trim();
		if (!name) {
			throw new Error('illegal argument `name`. must not be falsy');
		}
		return new ExtHostPushOutputChannel(name, this._proxy);
	}