Bug 316298 [Compatibility] Support o.e.ui.menus visibleWhen
We need support in MCoreExpression for entire expressions created by the WorkbenchMenuService. They don't often use ReferenceExpressions to core expression definitions. PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/impl/UiPackageImpl.java
* @see org.eclipse.e4.ui.model.application.ui.MCoreExpression
	 * @generated
	 */
	public EClass getCoreExpression() {
		return coreExpressionEClass;
	}
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.e4.ui.model.application.ui.MCoreExpression#getCoreExpressionId <em>Core Expression Id</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Core Expression Id</em>'.
	 * @see org.eclipse.e4.ui.model.application.ui.MCoreExpression#getCoreExpressionId()
	 * @see #getCoreExpression()
	 * @generated
	 */
	public EAttribute getCoreExpression_CoreExpressionId() {
		return (EAttribute)coreExpressionEClass.getEStructuralFeatures().get(0);
	}
	/**
	 * Returns the meta object for enum '{@link org.eclipse.e4.ui.model.application.ui.SideValue <em>Side Value</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for enum '<em>Side Value</em>'.
	 * @see org.eclipse.e4.ui.model.application.ui.SideValue
	 * @generated
	 */
	public EEnum getSideValue() {
		return sideValueEEnum;
	}
	/**