Swagger generator does not convert parameters in URLs to camel case when json_names_for_fields is enable.

[xin-au]

Hi Guys, I noticed an issue when I enable json_names_for_fields=true.
It does generate JSON camel case fields in a swagger doc, but except fields which were defined in URLs, like the following:

    rpc CreateSomething(CreateSomethingRequest) returns (CreateSomethingResponse) {
        option (google.api.http) = {
            post: "/v1/abc/{abc_id}"
            body: "*"
        };
    }

The swagger that generated by the above proto included the snake case abc_id even with enabling json_names_for_fields=true.

What did you expect to happen instead:
Expect abcId instead of abc_id in the generated swagger doc.

What's your theory on why it isn't working:
It seems the swagger generator did not convert those snake case fields when rendering the template.