Bug 91899 [Markers] IMarker.setAttribute fails when attributeName = IMarker.LOCATION
Calling setAttribute(IMarker.LOCATION, "foo") on an IMarker instance does nothing---the "Location" column in the Problem View remains blank.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/FieldMessage.java
/**
	 * Create an instance of the receiver.
	 */
	public FieldMessage() {
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.IField#getDescription()
	 */
	public String getDescription() {
		return  MarkerMessages.description_message;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.IField#getDescriptionImage()
	 */
	public Image getDescriptionImage() {
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.IField#getColumnHeaderText()
	 */
	public String getColumnHeaderText() {
		return MarkerMessages.description_message;
	}