[llvm-readobj] Separate `Symbol Version` dumpers into `LLVM style` and `GNU…

Authored by Higuoxing on Mar 22 2019, 8:42 AM.


[llvm-readobj] Separate Symbol Version dumpers into LLVM style and GNU style

Currently, llvm-readobj can dump symbol version sections only in LLVM style. In this patch, I would like to separate these dumpers into GNU style and
LLVM style for future implementation.

Reviewers: grimar, jhenderson, mattd, rupprecht

Reviewed By: rupprecht

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59186

llvm-svn: 356764