[BinaryFormat] Add .debug_names support

Summary:
This adds a definition of the .debug_names section and the new constants
(DW_IDX_???) which are used in it.

Reviewers: JDevlieghere, aprantl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42296

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323084 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed