Recommit r370661 "[llvm-nm] - Add a test case for case when we dump a symbol that...

Recommit r370661 "[llvm-nm] - Add a test case for case when we dump a symbol that belongs to a section with a broken sh_name."

Fix: add a 'consumeError()' call to ObjectFile.cpp.
This error was never checked.

Original commit message:

It adds a test case for a problem fixed by D66976 <https://reviews.llvm.org/D66976>.

It was introduced by me in D66089 <https://reviews.llvm.org/D66089>.
The error reported was never consumed because of a wrong variable name used,
so it could fail when LLVM_ENABLE_ABI_BREAKING_CHECKS is used.

Differential revision: https://reviews.llvm.org/D67002

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370669 91177308-0d34-0410-b5e6-96231b3b80d8