build failure in tst_qgraphicsproxywidget.cpp

building Qt 4.8 tests fails with the below error.
the qt docs say that "QCOMPARE is very strict on the data types. Both actual and expected have to be of the same type, otherwise the test won't compile. "
So there should be a cast of one of the params

/opt/test2/SolarisStudio12.3-solaris-x86-bin/solarisstudio12.3/bin/CC -c -I../../../mkspecs/solaris-cc -I. -I../../../include/QtCore -I../../../include/QtGui -I../../../include -I../../../include/QtTest -I/usr/X11/include -I.moc/debug-shared -I/usr/sfw/include -D_REENTRANT -DNDEBUG -D_EXTENSIONS_ -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_POSIX_PTHREAD_SEMANTICS -DSOLARIS -DNO_DEBUG -D_UNICODE -DUNICODE -D_RWSTD_REENTRANT -D_XOPEN_SOURCE=500 -D_XPG5 -I/opt/kde4/include -m32 -xarch=sse2 -features=extensions,nestedaccess,tmplrefstatic -template=geninlinefuncs -s -xlang=c99 -xustr=ascii_utf16_ushort -Qoption ccfe -features=gcc -Qoption ccfe -features=zla -Qoption ccfe ++boolflag:sunwcch=false -R/opt/kde4/lib -library=stdcxx4 -lCrun -I/usr/include/libpng14 -I/opt/kde4/include -I/usr/mysql/5.1/include/mysql -I/usr/include/libmng -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include -I/usr/include/odbc -g -I/usr/include/freetype2 -mt -DQT_GUI_LIB -DQT_CORE_LIB -DQT_HAVE_MMX -DQT_HAVE_SSE -DQT_HAVE_MMXEXT -DQT_HAVE_SSE2 -DQT_HAVE_SSE3 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_SHARED -o .obj/debug-shared/tst_qgraphicsproxywidget.o tst_qgraphicsproxywidget.cpp
"../../../mkspecs/solaris-cc/qplatformdefs.h", line 47: Warning (Anachronism): Attempt to redefine _EXTENSIONS_ without using #undef.
"../../../include/QtGui/private/../../../src/gui/kernel/qapplication_p.h", line 284: Warning: threadData hides QScopedLoopLevelCounter::threadData.
"../../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsitem_p.h", line 338: Warning: index hides QGraphicsItemPrivate::index.
"tst_qgraphicsproxywidget.cpp", line 187: Warning: tst_QGraphicsProxyWidget::eventFilter hides the virtual function QObject::eventFilter(QObject*, QEvent*).
"tst_qgraphicsproxywidget.cpp", line 3649: Error: Could not find a match for QTest::qCompare<QTest::T>(QWidget*, QGraphicsView*, const char[29], const char[6], const char[29], int) needed in tst_QGraphicsProxyWidget::QTBUG_6986_sendMouseEventToAlienWidget().
1 Error(s) and 4 Warning(s) detected.

This was introduced by fixing QTBUG-6986