[Win32] Fix wrong width and height in Sash with SWT.SMOOTH when dragging

When dragging a Sash with the SWT.SMOOTH, the width and height of the
sash are erroneously scaled up by the current zoom. It is caused by a
recent change which replaced a setBoundsInPixels with a setBounds call
still using the same pixel-based width and height values.

This change adapts the according call to consistently use pixel-based
values passed to the setBoundsInPixels method again.

Fixes #2329

Author: HeikoKlare

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Sash.java

@@ -332,7 +332,9 @@ LRESULT WM_LBUTTONUP (long wParam, long lParam) {
 	Rectangle bounds = event.getBounds();
 	if (event.doit) {
 		if ((style & SWT.SMOOTH) != 0) {
-			setBounds (bounds.x, bounds.y, width, height);
+			int xInPixels = Win32DPIUtils.pointToPixel(bounds.x, getZoom());
+			int yInPixels = Win32DPIUtils.pointToPixel(bounds.y, getZoom());
+			setBoundsInPixels (xInPixels, yInPixels, width, height);
 			// widget could be disposed at this point
 		}
 	}