[TIMOB-3574] iOS: intermittent error (callback exception) seen on append row test case and Events test case

Apr 11 2011 17:20 rcb9c6dc4, 3g iphone 3.1.3, ipod 4gt 4.3. New to 1.7.0

1.Base UI > Views > Table Views > Append Row
2.Tap append row with header
3.tap revealed row
4.try a few more times if error not seen (quite intermittent)

AND/OR

1.Base UI > Views > Table Views > Events
2.tap the various objects

results: following exceptions were seen. Tough to reliably reproduce.

for append row:
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : [WARN] Exception in event callback. {
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : expressionBeginOffset = 379;
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : expressionCaretOffset = 382;
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : expressionEndOffset = 393;
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : line = 2;
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : message = "Result of expression 'row' [undefined] is not an object.";
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : name = TypeError;
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : sourceId = 86925864;
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : sourceURL = "file://localhost/var/mobile/Applications/595E31B9-8408-4DB6-BDC7-CD158E2AA8C9/KitchenSink.app/examples/table_view_row_append.js";
Tue Apr 12 12:38:09 unknown UIKitApplication:com.appcelerator.titanium[0x35a7][365] : }

for events:
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : [WARN] Exception in event callback. {
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : expressionBeginOffset = 1027;
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : expressionCaretOffset = 1035;
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : expressionEndOffset = 1035;
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : line = 3;
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : message = "Can't find variable: tvLabel2";
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : name = ReferenceError;
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : sourceId = 85253072;
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : sourceURL = "file://localhost/var/mobile/Applications/595E31B9-8408-4DB6-BDC7-CD158E2AA8C9/KitchenSink.app/examples/table_view_events.js";
Tue Apr 12 13:16:33 unknown UIKitApplication:com.appcelerator.titanium[0xdc33][439] : }