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/java/JavaCompletionProcessor.java
}
	
	/**
	 * @see IContentAssistProcessor#computeContextInformation(ITextViewer, int)
	 */
	public IContextInformation[] computeContextInformation(ITextViewer viewer, int offset) {
		int contextInformationPosition= guessContextInformationPosition(viewer, offset);
		List result= addContextInformations(viewer, contextInformationPosition);
		return (IContextInformation[]) result.toArray(new IContextInformation[result.size()]);
	}
	
	/**
	 * Order the given proposals.
	 */
	private ICompletionProposal[] order(ICompletionProposal[] proposals) {
		Arrays.sort(proposals, fComparator);
		return proposals;	
	}
	
	/**
	 * @see IContentAssistProcessor#computeCompletionProposals(ITextViewer, int)
	 */
	public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset) {
		
		ICompilationUnit unit= fManager.getWorkingCopy(fEditor.getEditorInput());
		IJavaCompletionProposal[] results;
		if (ExperimentalPreference.fillArgumentsOnMethodCompletion(JavaPlugin.getDefault().getPreferenceStore())) {
				
			try {
				if (unit != null) {