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/text/ContentAssistPreference.java
enabled= store.getBoolean(ORDER_PROPOSALS);
		jdcp.orderProposalsAlphabetically(enabled);
	}
	
	/**
	 * Configure the given content assistant from the given store.
	 */
	public static void configure(ContentAssistant assistant, IPreferenceStore store) {
		
		JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools();
		IColorManager manager= textTools.getColorManager();		
		
		
		boolean enabled= store.getBoolean(AUTOACTIVATION);
		assistant.enableAutoActivation(enabled);
		
		int delay= store.getInt(AUTOACTIVATION_DELAY);
		assistant.setAutoActivationDelay(delay);
		
		Color c= getColor(store, PROPOSALS_FOREGROUND, manager);
		assistant.setProposalSelectorForeground(c);
		
		c= getColor(store, PROPOSALS_BACKGROUND, manager);
		assistant.setProposalSelectorBackground(c);
		
		c= getColor(store, PARAMETERS_FOREGROUND, manager);
		assistant.setContextInformationPopupForeground(c);
		assistant.setContextSelectorForeground(c);
		
		c= getColor(store, PARAMETERS_BACKGROUND, manager);