Add missing includes.

After qtbase/90e7cc172a7521396bb2d49720ee4ceb9a9390b3, QStringList no
longer includes QDataStream.

This also reverts qtbase/c1be0fbe7d17b67c330c0c90eb9ba8a0536c2121, which
did the same in a worse way.

Change-Id: Ib10622b0da3b3450d29fc65dc5356fde75444a8f
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
(cherry picked from qttools/376501ae5a86859821c0e89b2e8fbc9906d11e07)
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/shared/proparser/qmakeevaluator.h

@@ -38,7 +38,6 @@
 #include "qmakeparser.h"
 #include "ioutils.h"
 
-#include <qiodevice.h>
 #include <qlist.h>
 #include <qlinkedlist.h>
 #include <qmap.h>
@@ -49,6 +48,8 @@
 #include <qshareddata.h>
 #ifndef QT_BOOTSTRAPPED
 # include <qprocess.h>
+#else
+# include <qiodevice.h>
 #endif
 #ifdef PROEVALUATOR_THREAD_SAFE
 # include <qmutex.h>