[Inline model resolver] better handling of inline responses and bug fixes (#12353)

* better handling of inline response schemas, bug fixes

* update samples

* add new files

* better code format

* remove unused ruby files

* fix java test

* remove unused js spec files

* remove inline_response_default_test.dart

* fix webclient tests

* fix spring tests

samples/openapi3/client/petstore/python/docs/DefaultApi.md

@@ -8,7 +8,7 @@ Method | HTTP request | Description
 
 
 # **foo_get**
-> InlineResponseDefault foo_get()
+> FooGetDefaultResponse foo_get()
 
 
 
@@ -19,7 +19,7 @@ Method | HTTP request | Description
 import time
 import petstore_api
 from petstore_api.api import default_api
-from petstore_api.model.inline_response_default import InlineResponseDefault
+from petstore_api.model.foo_get_default_response import FooGetDefaultResponse
 from pprint import pprint
 # Defining the host is optional and defaults to http://petstore.swagger.io:80/v2
 # See configuration.py for a list of all supported configuration parameters.
@@ -47,7 +47,7 @@ This endpoint does not need any parameter.
 
 ### Return type
 
-[**InlineResponseDefault**](InlineResponseDefault.md)
+[**FooGetDefaultResponse**](FooGetDefaultResponse.md)
 
 ### Authorization
 

samples/openapi3/client/petstore/python/docs/FooGetDefaultResponse.md

@@ -0,0 +1,12 @@
+# FooGetDefaultResponse
+
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**string** | [**Foo**](Foo.md) |  | [optional] 
+**any string name** | **bool, date, datetime, dict, float, int, list, str, none_type** | any string name can be used but the value must be the correct type | [optional]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+