[llvm-objdump] Add symbol 'O' for object data

Improve compatibility with GNU objdump by showing `O` next to
global symbol names, instead of a blank space.

Patch by Higuoxing (Xing).

Reviewers: MaskRay

Differential Revision: https://reviews.llvm.org/D54380



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346610 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed