Bug 36518 call hierarchy: 'refresh' should available only in dropdown menu
toolbar button is not conventional and not accessible we should remove it from there and put in the dropdown menu (context menu is ok, i guess)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/callhierarchy/CallHierarchyViewPart.java
: SWT.VERTICAL);
                }
                fHierarchyLocationSplitter.layout();
            }
            for (int i = 0; i < fToggleOrientationActions.length; i++) {
                fToggleOrientationActions[i].setChecked(orientation == fToggleOrientationActions[i].getOrientation());
            }
            fCurrentOrientation = orientation;
            fDialogSettings.put(DIALOGSTORE_VIEWORIENTATION, orientation);
        }
    }
    /**
     * called from ToggleCallModeAction.
     * @param orientation CALL_MODE_CALLERS or CALL_MODE_CALLEES
     */
    void setCallMode(int mode) {
        if (fCurrentCallMode != mode) {
            for (int i = 0; i < fToggleCallModeActions.length; i++) {
                fToggleCallModeActions[i].setChecked(mode == fToggleCallModeActions[i].getMode());
            }
            fCurrentCallMode = mode;
            fDialogSettings.put(DIALOGSTORE_CALL_MODE, mode);
            updateView();
        }
    }
    /**
     * called from ToggleCallModeAction.
     * @param orientation CALL_MODE_CALLERS or CALL_MODE_CALLEES
     */
    void setJavaLabelFormat(int format) {