Fix ICE on recursively defined enum variant discriminant.#26515

Merged

bors merged 2 commits intorust-lang:masterfrom quantheory:check_enum_recursion

Jul 9, 2015

+170-36

Commits on Jun 23, 2015

Fix issue rust-lang#23302 , ICE on recursively defined enum variant discriminant.
quantheory
committed

Commits on Jul 9, 2015

Add comments about the checks for recursive variant definition, as requested by @nrc .
quantheory
committed