[Agustín K-ballo Bergé]
Builds successfully with msvc-12.0. However, the following trivial
snippet results in an ICE:
Repros with both VC12 and VC14. Filed as DevDiv#996370 "ICE with Boost 1.56.0 RC1 - Assertion failed: is<T>(), trees.h 626".
Thanks,
STL
