Incorporate top-level DSL blocks into fragment processors.

A Block() at the top-level scope would previously disappear silently.

Change-Id: Ic3bac058361658d2e5bd8de1e3718dedf4cef1f7
Bug: skia:11854
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/397516
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2 files changed