SkSL interpreter performance improvements

Bug: skia:
Change-Id: Ib7aff4a5b159d8ec3b4b8bb96cee62ed5d277a04
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211641
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
5 files changed