OpenAPI spec that causes generated c# constructor to be malformed.

ROConstructor.yaml

---
swagger: '2.0'
info:
  version: 0.0.0
  title: Exercise c-sharp codegen bug with readonly properties
paths:
  /:
    get:
      responses:
        200:
          description: OK
definitions:
  Foo:
    type: object
    properties:
      bar:
        type: string
      baz:
        type: string
        readOnly: true

Generated constructor is:

public Foo(string Bar = null, )
        {
            this.Bar = Bar;

        }