Bug 220767 [Dialogs] PopupDialog's HOVER_SHELLSTYLE should use SWT.TOOL
3.3.x and 3.4 M5. The SWT.TOOL flag should be used to create hover style shells, hence the PopupDialog's HOVER_SHELLSTYLE should use SWT.TOOL.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/PopupDialog.java
Point topLeft = new Point(bounds.x, bounds.y + bounds.height);
		topLeft = getShell().toDisplay(topLeft);
		menu.setLocation(topLeft.x, topLeft.y);
		menu.setVisible(true);
	}
	/**
	 * Set the text to be shown in the popup's info area. This message has no
	 * effect if there was no info text supplied when the dialog first opened.
	 * Subclasses may override this method.
	 * 
	 * @param text
	 *            the text to be shown when the info area is displayed.
	 * 
	 */
	protected void setInfoText(String text) {
		infoText = text;
		if (infoLabel != null) {
			infoLabel.setText(text);
		}
	}
	/**
	 * Set the text to be shown in the popup's title area. This message has no
	 * effect if there was no title label specified when the dialog was
	 * originally opened. Subclasses may override this method.
	 * 
	 * @param text
	 *            the text to be shown when the title area is displayed.
	 * 
	 */
	protected void setTitleText(String text) {