Fix warning for uninitialized variable

Reviewed-by: Eskil
(cherry picked from commit 94913c337a388e3d5938ece3a460f1f6e9590cd5)

Change-Id: Ie3c0986a3f5c70a654d9f14c3fae42b528c06b9e
Reviewed-on: http://codereview.qt.nokia.com/1632
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>

src/gui/text/qtextengine.cpp

@@ -323,7 +323,7 @@ static QChar::Direction skipBoundryNeutrals(QScriptAnalysis *analysis,
                                             const ushort *unicode, int length,
                                             int &sor, int &eor, QBidiControl &control)
 {
-    QChar::Direction dir;
+    QChar::Direction dir = control.basicDirection();
     int level = sor > 0 ? analysis[sor - 1].bidiLevel : control.level;
     while (sor < length) {
         dir = QChar::direction(unicode[sor]);