Bug 15604 Promote Fill arguments on method completion to a real preference
It is still in work in progress but it has become an established feature by now. Promote the preference to the code assist preference page.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
*/
	public void dispose() {
		
		if (fJavaTextTools != null) {
			fJavaTextTools= null;
		}
		
		fFontEditor.setPreferencePage(null);
		fFontEditor.setPreferenceStore(null);
		
		if (fOverlayStore != null) {
			fOverlayStore.stop();
			fOverlayStore= null;
		}
		
		super.dispose();
	}
	
	private Control addColorButton(Composite composite, String label, String key, int indentation) {
		Label labelControl= new Label(composite, SWT.NONE);
		labelControl.setText(label);
		
		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
		gd.horizontalIndent= indentation;
		labelControl.setLayoutData(gd);
		
		ColorEditor editor= new ColorEditor(composite);
		Button button= editor.getButton();
		button.setData(editor);