When accessing private field of union, do not misidentify it as a struct#63982

Merged

bors merged 2 commits intorust-lang:masterfrom sam09:fix-63976

Aug 30, 2019

+8-3

Commits on Aug 28, 2019

Fixes rust-lang#63976 . Incorrect error message.
sam09
committed

Commits on Aug 29, 2019

Fix test.
sam09
committed