Add a __source prop to all JSX Elements
Adds source file and line number to JSX elements.
###In
```
###Out
``
`sh`
$ npm install babel-plugin-transform-react-jsx-source
.babelrc
`json`
{
"plugins": ["transform-react-jsx-source"]
}
`sh`
$ babel --plugins transform-react-jsx-source script.js
`javascript``
require("babel-core").transform("code", {
plugins: ["transform-react-jsx-source"]
});