HR integration review request: 224938 - Deadlock AWT-EventQueue <-> Code Completion

Description:
http://netbeans.org/bugzilla/show_bug.cgi?id=224938

The CompletionImpl.caretUpdate method is incorrectly marked as 
synchronized even though its part that is sensitive for concurrent 
modification is encapsulated within a synchronized block.

Risk assessment: low - the part of the caretUpdate method sensitive for 
concurrent modification remains synchronized.

Reviewed by Jan Lahoda. QA verification by Jirka Prox.

Changeset:
http://hg.netbeans.org/main-golden/rev/e895c098916c

Thanks for review,
Dusan