Support anonymous field parsing

[swaggo]

Support anonymous field parsing

[easonlin404]

@lpxxn Sorry for my late reply, swag doesn't support anonymous field parsing. I want to add this future sooner. 😢

[easonlin404]

fixed swaggo/swag#40

[easonlin404]

@lpxxn Please update your github.com/swaggo/swag to the latest version.

[javasgl]

type ApiResponse struct {
	Success int         `json:"success"`
	Error   error       `json:"error"`
	Data    interface{} `json:"data"`
}

if Model contains a filed with the type interface{}, swag init got the error:

Something goes wrong: &ast.InterfaceType{Interface:239, Methods:(*ast.FieldList)(0xc4203ca930), Incomplete:false}

In above code, Data was been defined as interface{}, it broken the swag init command.
@easonlin404