Position: Directly ingest SPIR-V, and not a human-writable shading language

All,

We (Google, with input from Mozilla - greatly appreciated) have just
published our position paper: *Directly ingest SPIR-V, and not a
human-writable shading language*. It includes the promise ANGLE bug list
arguing against human-writable languages.

https://github.com/gpuweb/gpuweb/issues/44
Feedback is appreciated (let's keep it on the GitHub issue where possible,
so we don't fork the thread).

Since we plan to discuss shading languages at *this Wednesday's meeting
(Jan 3)*, it would be ideal if everyone could take a look before then.
Thanks!

-Kai