853: Extended possible observer references fqns

Author: bohdan-harniuk

src/com/magento/idea/magento2plugin/actions/generation/CreateAnObserverAction.java

@@ -136,7 +136,10 @@ private boolean checkIsEventDispatchMethod(final MethodReference element) {
             return false;
         }
         final String fqn = ((PhpClass) phpClass).getPresentableFQN();
-        return Observer.INTERFACE.equals(fqn);
+
+        return Observer.INTERFACE.equals(fqn)
+                || Observer.IMPLEMENTATION.equals(fqn)
+                || Observer.ENTITY_IMPL.equals(fqn);
     }
 
     private boolean checkIsElementStringLiteral(final @NotNull PsiElement element) {

src/com/magento/idea/magento2plugin/magento/files/Observer.java

@@ -12,6 +12,8 @@ public class Observer implements ModuleFileInterface {
 
     private final String fileName;
     public static final String INTERFACE = "Magento\\Framework\\Event\\ManagerInterface";
+    public static final String IMPLEMENTATION = "Magento\\Framework\\Event\\Manager";
+    public static final String ENTITY_IMPL = "Magento\\Framework\\EntityManager\\EventManager";
     public static final String DISPATCH_METHOD = "dispatch";
     public static final String NAME_ATTRIBUTE = "name";
     public static final String OBSERVER_EXECUTE_TEMPLATE_NAME = "Magento Observer Execute Method";