Finds base classes and structs whose destructor is neither public and
virtual nor protected and non-virtual.
A base class's destructor should be specified in one of these ways to
prevent undefined behaviour.
Fixes are available for user-declared and implicit destructors that are
either public and non-virtual or protected and virtual.
This check implements C.35 [1] from the CppCoreGuidelines.
Reviewed By: aaron.ballman, njames93
Differential Revision: http://reviews.llvm.org/D102325
[1]: http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#Rc-dtor-virtual
Marco Gartmann