[Bug c++/58848] constexpr function allows throw

[mib.bugzilla at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58848

--- Comment #1 from mib.bugzilla at gmail dot com ---
Created attachment 31073
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31073&action=edit
simpler test case gets compilation error (good)

both test cases should get a compilation error because of the throw.