Moved RTAdjust fixup into FunctionDefinition

Change-Id: Iafbff1bd91ee5c0234f109a514245a35f93eaffe
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/459478
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
4 files changed