Bug 36514 call hierarchy: should remove 'search ... using ..' preferences
we should decide whether the answer should be true or false and remove the preference settings - no user will ever understand what the setting means
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/callhierarchy/CallHierarchyViewPart.java
enableActions(page != PAGE_EMPTY);
    }
    /**
     * @param b
     */
    private void enableActions(boolean enabled) {
        fLocationContextMenu.setEnabled(enabled);
         
    }
    /**
     * Restores the type hierarchy settings from a memento.
     */
    private void restoreState(IMemento memento) {
        Integer orientation = memento.getInteger(TAG_ORIENTATION);
        if (orientation != null) {
            setOrientation(orientation.intValue());
        }
        Integer callMode = memento.getInteger(TAG_CALL_MODE);
        if (callMode != null) {
            setCallMode(callMode.intValue());
        }
        Integer javaLabelFormat = memento.getInteger(TAG_JAVA_LABEL_FORMAT);
        if (javaLabelFormat != null) {
            setJavaLabelFormat(javaLabelFormat.intValue());
        }
        Integer ratio = memento.getInteger(TAG_RATIO);
        if (ratio != null) {
            fHierarchyLocationSplitter.setWeights(new int[] {
                    ratio.intValue(), 1000 - ratio.intValue()
                });