Bug 256651 [FieldAssist] Wrong location calculation of proposal popup shell if content control is near bottom in the screen
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
* and places it inside the composite. The table will contain a list of
		 * all the proposals.
		 * 
		 * @param parent The parent composite to contain the dialog area; must
		 * not be <code>null</code>.
		 */
		protected final Control createDialogArea(final Composite parent) {
			
			if (USE_VIRTUAL) {
				proposalTable = new Table(parent, SWT.H_SCROLL | SWT.V_SCROLL
						| SWT.VIRTUAL);
				Listener listener = new Listener() {
					public void handleEvent(Event event) {
						handleSetData(event);
					}
				};
				proposalTable.addListener(SWT.SetData, listener);
			} else {
				proposalTable = new Table(parent, SWT.H_SCROLL | SWT.V_SCROLL);
			}
			
			setProposals(filterProposals(proposals, filterText));
			proposalTable.setHeaderVisible(false);
			proposalTable.addSelectionListener(new SelectionListener() {
				public void widgetSelected(SelectionEvent e) {
					
					
					if (e.item == null) {
						if (infoPopup != null) {
							infoPopup.close();