IDL compiler: 3 more special types for methods

Source/bindings/templates/methods.cpp

Index: Source/bindings/templates/methods.cpp
diff --git a/Source/bindings/templates/methods.cpp b/Source/bindings/templates/methods.cpp
index 4a86f3a75fc1c70faf45f54652c5af08d20d79c7..c2381da54f8d37c4aeebbf800f8ce08a4e6f6db6 100644
--- a/Source/bindings/templates/methods.cpp
+++ b/Source/bindings/templates/methods.cpp
@@ -41,6 +41,12 @@ static void {{method.name}}Method(const v8::FunctionCallbackInfo<v8::Value>& arg
         return;
     }
     {% endif %}
+    {% if argument.idl_type == 'Dictionary' %}
+    if (!dictionaryArg.isUndefinedOrNull() && !dictionaryArg.isObject()) {
+        throwTypeError(ExceptionMessages::failedToExecute("voidMethodDictionaryArg", "TestObjectPython", "parameter 1 ('dictionaryArg') is not an object."), args.GetIsolate());
+        return;
+    }
+    {% endif %}
     {% endfor %}
     {{method.cpp_method}};
 }