[PECOFF] Add another test for the module-definition file parser.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@199159 91177308-0d34-0410-b5e6-96231b3b80d8
Use bettter names for the tests.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@199161 91177308-0d34-0410-b5e6-96231b3b80d8