First draft of translation document

[Brian Goetz]

> "Additionally, we assume that the MethodHandle class will be extended
> to provide a method asSam(Class sam) which will provide an optimized
> form of injecting a SAM interface into a method handle."
>
> At the end of the day, doesn't that mean that an anonymous proxy class
> will be created anyway?

Nope!  A bit of VM magic called "interface injection" allows this to be done 
without generating stub classes.

Generating stub classes in the front-end compiler bloats up the application 
static footprint and increases program startup time.  The VM magic bypasses 
these costs.