Bug 14939 Parameter assist highlighting doesn't always match editor
Build 20020426 (M5 patch 1) Type the following in the body of a java method: int[] source, destination; System.arraycopy(source, <cursor> Now hit Ctrl+Space at <cursor>, and hit enter to select the only match in the popup list. Now the "parameter assist" window is supposed to highlight the parameters as they are typed in the editor. Since I have already typed the first parameter before doing code-assist, the highlighting will always be off by one parameter as I type.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/JavaCompletionProcessor.java
fCollector= new ResultCollector();
		fManager= JavaPlugin.getDefault().getWorkingCopyManager();
		ContextType contextType= ContextTypeRegistry.getInstance().getContextType("java"); 
		if (contextType != null)
			fTemplateEngine= new TemplateEngine(contextType);
		fExperimentalCollector= new ExperimentalResultCollector();
		fAllowAddImports= true;
		
		fComparator= new JavaCompletionProposalComparator();
	}
	
	/**
	 * Sets this processor's set of characters triggering the activation of the
	 * completion proposal computation.
	 * 
	 * @param activationSet the activation set
	 */
	public void setCompletionProposalAutoActivationCharacters(char[] activationSet) {
		fProposalAutoActivationSet= activationSet;
	}
	
	/**
	 * Tells this processor to restrict its proposal to those element
	 * visible in the actual invocation context.
	 * 
	 * @param restrict <code>true</code> if proposals should be restricted
	 */
	public void restrictProposalsToVisibility(boolean restrict) {
		Hashtable options= JavaCore.getOptions();
		Object value= options.get(VISIBILITY);