Bug 1172813 - Catch the case which string is 0x prefixed but can't co…

…nvert to integer. r=dhylands

scripts/profile-symbolicate.py

@@ -383,7 +383,10 @@ def getUnresolvedAddressesV3():
       for thread in self.profile["threads"]:
         for str in thread["stringTable"]:
           if str[:2] == "0x":
-            yield int(str, 0)
+            try:
+              yield int(str, 0)
+            except ValueError:
+              continue
 
     if self.profile["meta"]["version"] >= 3:
       addresses = getUnresolvedAddressesV3()