Bug 133599 [FieldAssist] Left and right arrow keys should work with open proposals list
I20060328-0010, worked in M5 In the Find/Replace dialog, enable regex, then type something into the Find field and invoke content assist. Pressing the left or right arrow key now closes the proposals popup. The list should not be closed, but the caret should be moved and the proposals should be recalculated for the new caret position.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
/*
	 * The lightweight popup used to show content proposals for a text field. If
	 * additional information exists for a proposal, then selecting that
	 * proposal will result in the information being displayed in a secondary
	 * popup.
	 */
	class ContentProposalPopup extends PopupDialog {
		/*
		 * The listener we install on the popup and related controls to
		 * determine when to close the popup. Some events (move, resize, close,
		 * deactivate) trigger closure as soon as they are received, simply
		 * because one of the registered listeners received them. Other events
		 * depend on additional circumstances.
		 */
		private final class PopupCloserListener implements Listener {