Bug 92563 [content assist] Warm code assist performance for many types
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/java/CompletionProposalCollector.java
* Subclasses may extend, but must call the super implementation.
	 */
	public void beginReporting() {
		if (DEBUG) {
			fStartTime= System.currentTimeMillis();
			fUITime= 0;
		}
		fLastProblem= null;
		fJavaProposals.clear();
		fKeywords.clear();
		fSuggestedMethodNames.clear();
	}
	/**
	 * {@inheritDoc}
	 *
	 * Subclasses may extend, but must call the super implementation.
	 */
	public void completionFailure(IProblem problem) {
		fLastProblem= problem;
	}
	/**
	 * {@inheritDoc}
	 *
	 * Subclasses may extend, but must call the super implementation.
	 */
	public void endReporting() {
		if (DEBUG) {
			long total= System.currentTimeMillis() - fStartTime;
			System.err.println("Code Assist (core): " + (total - fUITime)); 
			System.err.println("Code Assist (UI): " + fUITime);