refactor: replace QDateTime::toTime_t with QDateTime::toSecsSinceEpoch

src/qt/recentrequeststablemodel.cpp

@@ -234,7 +234,7 @@ bool RecentRequestEntryLessThan::operator()(const RecentRequestEntry& left, cons
     switch(column)
     {
     case RecentRequestsTableModel::Date:
-        return pLeft->date.toTime_t() < pRight->date.toTime_t();
+        return pLeft->date.toSecsSinceEpoch() < pRight->date.toSecsSinceEpoch();
     case RecentRequestsTableModel::Label:
         return pLeft->recipient.label < pRight->recipient.label;
     case RecentRequestsTableModel::Message:

src/qt/recentrequeststablemodel.h

@@ -7,6 +7,8 @@
 
 #include <qt/sendcoinsrecipient.h>
 
+#include <string>
+
 #include <QAbstractTableModel>
 #include <QStringList>
 #include <QDateTime>
@@ -26,7 +28,7 @@ public:
 
     SERIALIZE_METHODS(RecentRequestEntry, obj) {
         unsigned int date_timet;
-        SER_WRITE(obj, date_timet = obj.date.toTime_t());
+        SER_WRITE(obj, date_timet = obj.date.toSecsSinceEpoch());
         READWRITE(obj.nVersion, obj.id, date_timet, obj.recipient);
         SER_READ(obj, obj.date = QDateTime::fromSecsSinceEpoch(date_timet));
     }