[llvm-readelf] Correctly dump symbols whose section id is SHN_XINDEX

Differential revision: https://reviews.llvm.org/D60614


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358396 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed