fixed SkSL interpreter test

Bug: skia:
Change-Id: I8ddb017994cd9e4ad01163da07888c431a5b1276
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212416
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
1 file changed