src/vs/workbench/services/extensions/common/rpcProtocol.ts/MessageBuffer/writeShortString
class MessageBuffer:	public writeShortString(str: VSBuffer): void {
		this._buff.writeUInt8(str.byteLength, this._offset); this._offset += 1;
		this._buff.set(str, this._offset); this._offset += str.byteLength;
	}