Better handling of Inline schema (#15682)

* skip allOf inline subschema created as $ref

* add option for fallback

* add back atleastonemodel

* add log

* update java, kotlin, js samples

* update tests

* fix native client test

* fix java client errors by regenerating test files

* clean up python

* clean up powershell

* clean up php

* clean up ruby

* update erlang, elixir

* update dart samples

* update ts samples

* update r, go samples

* update perl

* update swift

* add back files

* add back files

* remove outdated test files

* fix test

samples/client/petstore/java/native-async/api/openapi.yaml

@@ -1431,12 +1431,18 @@ components:
     Dog:
       allOf:
       - $ref: '#/components/schemas/Animal'
-      - $ref: '#/components/schemas/Dog_allOf'
+      - properties:
+          breed:
+            type: string
+        type: object
     Cat:
       allOf:
       - $ref: '#/components/schemas/Animal'
       - $ref: '#/components/schemas/Address'
-      - $ref: '#/components/schemas/Cat_allOf'
+      - properties:
+          declawed:
+            type: boolean
+        type: object
     Address:
       additionalProperties:
         type: integer
@@ -2118,7 +2124,16 @@ components:
     ChildCat:
       allOf:
       - $ref: '#/components/schemas/ParentPet'
-      - $ref: '#/components/schemas/ChildCat_allOf'
+      - properties:
+          name:
+            type: string
+          pet_type:
+            default: ChildCat
+            enum:
+            - ChildCat
+            type: string
+            x-enum-as-string: true
+        type: object
     ArrayOfEnums:
       items:
         $ref: '#/components/schemas/OuterEnum'
@@ -2307,30 +2322,6 @@ components:
       required:
       - requiredFile
       type: object
-    Dog_allOf:
-      properties:
-        breed:
-          type: string
-      type: object
-      example: null
-    Cat_allOf:
-      properties:
-        declawed:
-          type: boolean
-      type: object
-      example: null
-    ChildCat_allOf:
-      properties:
-        name:
-          type: string
-        pet_type:
-          default: ChildCat
-          enum:
-          - ChildCat
-          type: string
-          x-enum-as-string: true
-      type: object
-      example: null
   securitySchemes:
     petstore_auth:
       flows: