Use qsizetype in QList

The change creates a slight source incompatibility. The main
things to take care of are

* code using printf statements on list.size(). Using qsizetype in
printf statements will always require a cast to work on both 32
and 64 bit.
* A few places where overloads now get ambiguous. One example is
QRandomGenerator::bounded() that has overloads for int, uint and
double, but not int64.
* Streaming list.size() to a QDataStream will change the format
depending on the architecture.

[ChangeLog][QtCore][QList] QList now uses qsizetype to index into
elements.

Change-Id: Iaff562a4d072b97f458417b670f95971bd47cbc6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/widgets/widgets/qtoolbararealayout.cpp b/src/widgets/widgets/qtoolbararealayout.cpp
index 493c094cc1..6297796931 100644
--- a/src/widgets/widgets/qtoolbararealayout.cpp
+++ b/src/widgets/widgets/qtoolbararealayout.cpp
@@ -1267,7 +1267,7 @@ void QToolBarAreaLayout::saveState(QDataStream &stream) const
         for (int j = 0; j < dock.lines.count(); ++j) {
             const QToolBarAreaLayoutLine &line = dock.lines.at(j);
 
-            stream << i << line.toolBarItems.count();
+            stream << i << int(line.toolBarItems.count());
 
             for (int k = 0; k < line.toolBarItems.count(); ++k) {
                 const QToolBarAreaLayoutItem &item = line.toolBarItems.at(k);