Debugger: Make LLDB main loop exception reporting more verbose

Include the full call stack.

Change-Id: Ib2a18df0db85063146ed9dc09351844924e22bdc
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

share/qtcreator/debugger/lldbbridge.py

@@ -1654,8 +1654,8 @@ def doit():
         try:
             db.execute(convertHash(json.loads(line)))
         except:
-            warn("EXCEPTION CAUGHT: %s" % sys.exc_info()[1])
-            pass
+            (exType, exValue, exTraceback) = sys.exc_info()
+            showException("MAIN LOOP", exType, exValue, exTraceback)
         line = sys.stdin.readline()