Replace 'i < len-1 && func(i+1)' by 'i+1 < len && func(i+1)'

Replace 'i < len-1 && func(i+1)' by 'i+1 < len && func(i+1)'

Merge-request: 1299
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
(cherry picked from commit 81f0c44f6a4fd4cfa41af5d5b292008185bf3981)

Conflicts:
	src/qt3support/itemviews/q3listbox.cpp
	src/qt3support/sql/q3datatable.cpp
	src/qt3support/text/q3richtext.cpp
	src/scripttools/debugging/qscriptcompletiontask.cpp
	src/scripttools/debugging/qscriptdebuggercodeview.cpp

Change-Id: Ie70590e77e69fbb9b2322c48c3963fd9cbba19e6
Reviewed-on: http://codereview.qt-project.org/4581
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>