[gold] Test we don't strip globals when producing relocatables.

lld was broken in this regard (PR33097). The gold plugin gets this
right so, no changes needed, but better adding a test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311541 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed