Improve logging detail of connectivity issues

Summary:
Here we capture and persist the full stack trace of any connectivity problems in communicating with the pyre server daemon instance from the pyre client.

This will aid us in further investigating the root cause of any connectivity/stability issues which pyre codenav has been impacted by

Reviewed By: inseokhwang

Differential Revision: D50736810

fbshipit-source-id: 46a950cd60e8c5b56ead95a37549738fcc3fb3de

client/language_server/daemon_connection.py

@@ -20,6 +20,7 @@
 import contextlib
 import dataclasses
 import logging
+import traceback
 from pathlib import Path
 from typing import AsyncIterator, Union
 
@@ -101,5 +102,5 @@ async def attempt_send_async_raw_request(
     ) as error:
         return DaemonConnectionFailure(
             "Could not establish connection with an existing Pyre server "
-            f"at {socket_path}: {error}"
+            f"at {socket_path}: {error}. Type: {type(error)}. Stacktrace: {traceback.format_exc( limit = None, chain = True)}"
         )