Add begin()/end() on QRegularExpressionMatchIterator, making
iterators over an iterator (like directory_iterator).
[ChangeLog][QtCore][QRegularExpression] The iterator object
(QRegularExpressionMatchIterator) returned by a global match
is now usable in a range-based for loop.
Change-Id: If3d31bd2e84e7d1fb626a0b3d2745914dff03e39
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>