Update parser to 2.0.29 (#11388)

* update parser to 2.0.29

* better handling of null in dereferencing

* update parser to 2.0.30

* update core to newer version

* add new files

* rollback to previous stable version

* remove files

* Fixes for python-experimental NullableShape component

Co-authored-by: Justin Black <justin.a.black@gmail.com>

samples/client/petstore/java/okhttp-gson/api/openapi.yaml

@@ -53,6 +53,7 @@ paths:
       x-accepts: application/json
   /pet:
     post:
+      description: ""
       operationId: addPet
       requestBody:
         $ref: '#/components/requestBodies/Pet'
@@ -70,6 +71,7 @@ paths:
       x-contentType: application/json
       x-accepts: application/json
     put:
+      description: ""
       operationId: updatePet
       requestBody:
         $ref: '#/components/requestBodies/Pet'
@@ -183,6 +185,7 @@ paths:
       x-accepts: application/json
   /pet/{petId}:
     delete:
+      description: ""
       operationId: deletePet
       parameters:
       - explode: false
@@ -246,6 +249,7 @@ paths:
       - pet
       x-accepts: application/json
     post:
+      description: ""
       operationId: updatePetWithForm
       parameters:
       - description: ID of pet that needs to be updated
@@ -284,6 +288,7 @@ paths:
       x-accepts: application/json
   /pet/{petId}/uploadImage:
     post:
+      description: ""
       operationId: uploadFile
       parameters:
       - description: ID of pet to update
@@ -347,6 +352,7 @@ paths:
       x-accepts: application/json
   /store/order:
     post:
+      description: ""
       operationId: placeOrder
       requestBody:
         content:
@@ -450,6 +456,7 @@ paths:
       x-accepts: application/json
   /user/createWithArray:
     post:
+      description: ""
       operationId: createUsersWithArrayInput
       requestBody:
         $ref: '#/components/requestBodies/UserArray'
@@ -463,6 +470,7 @@ paths:
       x-accepts: application/json
   /user/createWithList:
     post:
+      description: ""
       operationId: createUsersWithListInput
       requestBody:
         $ref: '#/components/requestBodies/UserArray'
@@ -476,6 +484,7 @@ paths:
       x-accepts: application/json
   /user/login:
     get:
+      description: ""
       operationId: loginUser
       parameters:
       - description: The user name for login
@@ -527,6 +536,7 @@ paths:
       x-accepts: application/json
   /user/logout:
     get:
+      description: ""
       operationId: logoutUser
       responses:
         default:
@@ -558,6 +568,7 @@ paths:
       - user
       x-accepts: application/json
     get:
+      description: ""
       operationId: getUserByName
       parameters:
       - description: The name that needs to be fetched. Use user1 for testing.
@@ -1020,6 +1031,7 @@ paths:
       x-accepts: '*/*'
   /fake/jsonFormData:
     get:
+      description: ""
       operationId: testJsonFormData
       requestBody:
         $ref: '#/components/requestBodies/inline_object_4'
@@ -1047,6 +1059,7 @@ paths:
       x-accepts: application/json
   /fake/inline-additionalProperties:
     post:
+      description: ""
       operationId: testInlineAdditionalProperties
       requestBody:
         content:
@@ -1183,6 +1196,7 @@ paths:
       x-accepts: application/json
   /fake/{petId}/uploadImageWithRequiredFile:
     post:
+      description: ""
       operationId: uploadFileWithRequiredFile
       parameters:
       - description: ID of pet to update