fixed SkSL parser unary expression recursion depth limit

Bug: 892506
Change-Id: I244532ee80617dd5f0bbdd2184ccec7325a219f2
Reviewed-on: https://skia-review.googlesource.com/c/193584
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
1 file changed