swift

61fadf06 - Merge pull request #16724 from nkcsgexi/cherry-mig-05-18-04-30

Merge pull request #16724 from nkcsgexi/cherry-mig-05-18-04-30 [4.2-04-30] migrator: avoid inserting base name while renaming if users' member access doesn't specify the base name. rdar://40373279