Some suggestions and optimization✍️

[Terry-bear]

1. Sometimes our end-coder defined some types like Long, Float and Double when i use gql-generator to transform above types

it's always throw error said Type "Long" not found in document.

Can you fix it? when appeared Long, Float and Double, it can autofix to Int type

2. Cannot parse properly when comments appear in the file.

I have to delete annotation in my *.graphqls

Can you fix it?