Remove last uses of Java-style (non-mutable) iterators from QtBase
Remove last uses of Java-style (non-mutable) iterators from QtBase

Change-Id: I7531ffd4f2d5b2193bb6231c743ff0a074618b99
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

Backport of:
http://code.qt.io/cgit/qt/qtbase.git/commit/src/gui/image/qiconloader.cpp?id=d08db1100874fdc36ea169d34a8902133186b84b

luis-pereira/libqtxdg,libqtxdg/libqtxdg,luis-pereira/libqtxdg,libqtxdg/libqtxdg,lxde/libqtxdg,lxde/libqtxdg