Allow access to nested computed values (fix #2196)#2356

lmiller1990 merged 2 commits intovuejs:mainvuejs/test-utils:mainfrom

Evobaso-J:fix/computed-ref-unwrapping-is-different-than-in-vueEvobaso-J/test-utils:fix/computed-ref-unwrapping-is-different-than-in-vueCopy head branch name to clipboard