Add missing #include for QDataStream

main.cpp:542:22: error: variable ‘QDataStream s’ has initializer but incomplete type
qm.cpp:236:16: error: ambiguous overload for ‘operator<<’ (operand types are ‘QDataStream’ and ‘quint8 {aka unsigned char}’)

Change-Id: Ie54f6b8e0362bb5d501a9ce58fd206d32fb3b697
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/assistant/qcollectiongenerator/main.cpp

@@ -45,6 +45,7 @@
 #include <private/qhelpgenerator_p.h>
 #include <private/qhelpprojectdata_p.h>
 
+#include <QtCore/QDataStream>
 #include <QtCore/QDir>
 #include <QtCore/QMap>
 #include <QtCore/QFileInfo>

src/linguist/shared/qm.cpp

@@ -44,6 +44,7 @@
 #ifndef QT_BOOTSTRAPPED
 #include <QtCore/QCoreApplication>
 #endif
+#include <QtCore/QDataStream>
 #include <QtCore/QDebug>
 #include <QtCore/QDir>
 #include <QtCore/QFile>