[REG 6.4.0-beta1 -> 6.4.0-beta2] Qt no longer builds with -no-feature-highdpiscaling

/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp: In member function 'void QBackingStore::beginPaint(const QRegion&)':
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:125:48: error: 'scale' is not a member of 'QHighDpi'
  125 |     platformBackingStore->beginPaint(QHighDpi::scale(region, d_ptr->deviceIndependentToNativeFactor()));
      |                                                ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp: In member function 'void QBackingStore::flush(const QRegion&, QWindow*, const QPoint&)':
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:211:38: error: 'scale' is not a member of 'QHighDpi'
  211 |     QRegion nativeRegion = QHighDpi::scale(region, toNativeFactor);
      |                                      ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:214:34: error: 'scale' is not a member of 'QHighDpi'
  214 |         nativeOffset = QHighDpi::scale(offset, toNativeFactor);
      |                                  ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:217:42: error: 'scale' is not a member of 'QHighDpi'
  217 |         QPoint nativeTopLeft = QHighDpi::scale(topLeft, toNativeFactor);
      |                                          ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp: In member function 'void QBackingStore::resize(const QSize&)':
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:233:32: error: 'scale' is not a member of 'QHighDpi'
  233 |     handle()->resize(QHighDpi::scale(size, d_ptr->deviceIndependentToNativeFactor()), d_ptr->staticContents);
      |                                ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp: In member function 'bool QBackingStore::scroll(const QRegion&, int, int)':
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:256:38: error: 'scale' is not a member of 'QHighDpi'
  256 |     const qreal nativeDx = QHighDpi::scale(qreal(dx), toNativeFactor);
      |                                      ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:257:38: error: 'scale' is not a member of 'QHighDpi'
  257 |     const qreal nativeDy = QHighDpi::scale(qreal(dy), toNativeFactor);
      |                                      ^~~~~
/usr/src/Libraries/qt_6_4_0/qtbase/src/gui/painting/qbackingstore.cpp:261:39: error: 'scale' is not a member of 'QHighDpi'
  261 |     return handle()->scroll(QHighDpi::scale(area, toNativeFactor), nativeDx, nativeDy);
      |                                       ^~~~~