This avoids a situation where we didn't know the position of a binary
expression while we were in the middle of evaluating it, which was
leading to problems with upcoming error reporting changes.
Change-Id: Ie41fa82d077de1aa1041cd84c539ba29aaa2f5f0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/527500
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
453e4def6f