Bug 122982 [KeyBindings] errors: No warning when creating an invalid keybinding sequence
I tried to map COLUMN_PREVIOUS to ARROW_LEFT in my plug.xml. But I set it to "LEFT" instead. LEFT is unrecognized, yet there was no warning in the .log file indicating that an invalid sequence had been set. I also have debug keybindings enabled in my options file, and it did not spew any complaints either.
bundles/org.eclipse.jface/src/org/eclipse/jface/bindings/keys/KeySequence.java
/**
	 * The delimiter between multiple key strokes in a single key sequence --
	 * expressed in the formal key stroke grammar. This is not to be displayed
	 * to the user. It is only intended as an internal representation.
	 */
	public final static String KEY_STROKE_DELIMITER = "\u0020"; 
	/**
	 * The set of delimiters for <code>KeyStroke</code> objects allowed during
	 * parsing of the formal string representation.
	 */
	public final static String KEY_STROKE_DELIMITERS = KEY_STROKE_DELIMITER
			+ "\b\r\u007F\u001B\f\n\0\t\u000B"; 
	/**
	 * Gets an instance of <code>KeySequence</code>.
	 * 
	 * @return a key sequence. This key sequence will have no key strokes.
	 *         Guaranteed not to be <code>null</code>.
	 */
	public static final KeySequence getInstance() {
		return EMPTY_KEY_SEQUENCE;
	}
	/**
	 * Creates an instance of <code>KeySequence</code> given a key sequence
	 * and a key stroke.
	 * 
	 * @param keySequence
	 *            a key sequence. Must not be <code>null</code>.
	 * @param keyStroke
	 *            a key stroke. Must not be <code>null</code>.
	 * @return a key sequence that is equal to the given key sequence with the