Failing test highlighting no poisoning when destructor not declared.

Summary:
When destructor for a class is not declared, no destructor
is emitted, and members are not poisoned. Test case exhibits this
current bug in use-after-dtor implementation (detailed in
https://github.com/google/sanitizers/issues/596).

Reviewers: eugenis, kcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D12617

Rename test files.

llvm-svn: 247091