* Preserve the variable name when exporting an arrow or anonymous function
This allows the browser or node to properly name the (arrow) function
* Updated tests to reflect previous change
* Remove duplicated comment
* Transforms variable.initializer using moduleExpressionElementVisitor
* PR feedback: rbuckton
- Use isArrowFunction and isFunctionExpression
* PR feedback: rbuckton
- Consider ClassExpresion, they can also be named based on the
variable.