[PATCH] D26458: Protect nested-exceptions tests under no-exceptions

[Asiri Rathnayake via cfe-commits]

rmaprath added a comment.

On the other hand, disabling `<exception>` would mean disabling some parts of the library as well (in this case, `std::promise::set_exception`). Perhaps that's a bad path to follow. Not sure.


Repository:
  rL LLVM

https://reviews.llvm.org/D26458