Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
  Clear X11 structure before use
  Make operator QRectF const
  Fix GC-related crash in QScriptValue::setData()
  get rid of dependency on QtGui
  Removed implicity QtGui linking from icd.pro as it is not needed.
  DFB: Make sure QPixmap::hasAlpha is respected
  fix build on mingw
  Fix some painting issues in QDirectFBPaintEngine
  QNAM: Do not need QNetworkSession in AlwaysCache load mode
  Don't crash if QScriptClass property getter returns an invalid value
  QNAM: Remove dead waitForUpstreamBytesWritten() code
  QNAM: Remove dead waitForDownstreamReadyRead() code
  fix memleak in test

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/auto/qscriptvalue/tst_qscriptvalue.cpp b/tests/auto/qscriptvalue/tst_qscriptvalue.cpp
index 639df36..53e2699 100644
--- a/tests/auto/qscriptvalue/tst_qscriptvalue.cpp
+++ b/tests/auto/qscriptvalue/tst_qscriptvalue.cpp
@@ -2253,6 +2253,19 @@ void tst_QScriptValue::getSetData()
     QVERIFY(!object.data().isValid());
 }
 
+void tst_QScriptValue::setData_QTBUG15144()
+{
+    QScriptEngine eng;
+    QScriptValue obj = eng.newObject();
+    for (int i = 0; i < 10000; ++i) {
+        // Create an object with property 'fooN' on it, and immediately kill
+        // the reference to the object so it and the property name become garbage.
+        eng.evaluate(QString::fromLatin1("o = {}; o.foo%0 = 10; o = null;").arg(i));
+        // Setting the data will cause a JS string to be allocated, which could
+        // trigger a GC. This should not cause a crash.
+        obj.setData("foodfight");
+    }
+}
 class TestScriptClass : public QScriptClass
 {
 public: