src/vs/workbench/services/extensions/common/rpcProtocol.ts/MessageBuffer/readLongString
class MessageBuffer:	public readLongString(): string {
		const strByteLength = this._buff.readUInt32BE(this._offset); this._offset += 4;
		const strBuff = this._buff.slice(this._offset, this._offset + strByteLength);
		const str = strBuff.toString(); this._offset += strByteLength;
		return str;
	}