Abandon describing of loaded values due to safety concerns. Loaded
values are described as derefed memory location at caller point.
At callee we can unintentionally change that memory location which
would lead to different entry being printed value before and after
the memory location clobbering. This problem is described in
llvm.org/PR43343.
Patch by Nikola Prica
Differential Revision: https://reviews.llvm.org/D67717
llvm-svn: 373089
