Bug 54470 Eclipse should disallow usage of types defined in default package
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewTypeWizardPage.java
* Creates the controls for the package name field. Expects a <code>GridLayout</code> with at 
	 * least 4 columns.
	 * 
	 * @param composite the parent composite
	 * @param nColumns number of columns to span
	 */	
	protected void createPackageControls(Composite composite, int nColumns) {
		fPackageDialogField.doFillIntoGrid(composite, nColumns);
		Text text= fPackageDialogField.getTextControl(null);
		LayoutUtil.setWidthHint(text, getMaxFieldWidth());	
		LayoutUtil.setHorizontalGrabbing(text);
		ControlContentAssistHelper.createTextContentAssistant(text, fCurrPackageCompletionProcessor);
	}
	/**
	 * Creates the controls for the enclosing type name field. Expects a <code>GridLayout</code> with at 
	 * least 4 columns.
	 * 
	 * @param composite the parent composite
	 * @param nColumns number of columns to span
	 */		
	protected void createEnclosingTypeControls(Composite composite, int nColumns) {
		
		Composite tabGroup= new Composite(composite, SWT.NONE);
		GridLayout layout= new GridLayout();
		layout.marginWidth= 0;
		layout.marginHeight= 0;
 		tabGroup.setLayout(layout);
		fEnclosingTypeSelection.doFillIntoGrid(tabGroup, 1);
		Text text= fEnclosingTypeDialogField.getTextControl(composite);
		GridData gd= new GridData(GridData.FILL_HORIZONTAL);