Bug 246105 [Dialogs] Title and description not layed out properly when title image is null
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
protected Control createContents(Composite parent) {
		
		Composite contents = new Composite(parent, SWT.NONE);
		contents.setLayoutData(new GridData(GridData.FILL_BOTH));
		
		initializeDialogUnits(contents);
		FormLayout layout = new FormLayout();
		contents.setLayout(layout);
		
		workArea = new Composite(contents, SWT.NONE);
		GridLayout childLayout = new GridLayout();
		childLayout.marginHeight = 0;
		childLayout.marginWidth = 0;
		childLayout.verticalSpacing = 0;
		workArea.setLayout(childLayout);
		Control top = createTitleArea(contents);
		resetWorkAreaAttachments(top);
		workArea.setFont(JFaceResources.getDialogFont());
		
		initializeDialogUnits(workArea);
		
		dialogArea = createDialogArea(workArea);
		buttonBar = createButtonBar(workArea);
		return contents;
	}
	/**
	 * Creates and returns the contents of the upper part of this dialog (above
	 * the button bar).
	 * <p>
	 * The <code>Dialog</code> implementation of this framework method creates