much better idea

Instead of trying to genereate snippets of code that an work when
splicing and when interpreting, let's just make one snippet for each.
And then, let's add one more portable single float version!

Why build one when you can have three at thrice the price?

This doesn't make these new strategies active, but does start moving the
code in build_stages.py and SkSplicer_stages.cpp towards that.

Change-Id: I2197fa2a11e233f24da67e54a4f291135652b087
Reviewed-on: https://skia-review.googlesource.com/8453
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2 files changed