IZ#165960 to integrate into release67

Vladimir Voskresensky <[email protected]>
Newsgroups gmane.comp.java.netbeans.reviewers
Message-ID <[email protected]> 
IZ#165960: IllegalArgumentException appears after Ctrl-R
description/impact:
- after rename refactoring inplace refactoring doesn't work and throw 
exception

risks:
- added check to invalidate cache once file is externally changed => fix 
is safe, because only added comparison of remembered and current "last 
modified" date
http://hg.netbeans.org/main-golden/rev/7964d9795dbe
Alexander Simon reviewed fix, Valery Soldatov verified.

Thanks,
Vladimir.
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