Code cleanup: reuse get_storage_class in writeGlobalVar.

Previously, we reimplemented get_storage_class almost verbatim in
writeGlobalVar. A few tiny tweaks allowed this logic to be deduplicated.

Change-Id: I9f7bb24c53f5249ea4e2e87ea8d18ff7b7150ed8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360598
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
1 file changed