C++: Set endOffset of Function symbols even if skipping bodies.

Fixes insert-definition-from-declaration when the source file was not
yet opened in an editor.

Change-Id: I4263113390ae4fbe9d4641104b5cb43373ddc5a4
Reviewed-on: http://codereview.qt-project.org/4394
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>

src/plugins/cpptools/insertionpointlocator.cpp

@@ -548,7 +548,6 @@ static InsertionLocation nextToSurroundingDefinitions(Declaration *declaration,
     return InsertionLocation(definition->fileName(), prefix, suffix, line, column);
 }
 
-/// Currently, we return the end of fileName.cpp
 QList<InsertionLocation> InsertionPointLocator::methodDefinition(
     Declaration *declaration) const
 {