[dwarfdump] Hide ranges in diff-mode.

llvm-dwarfdump --diff should not print DW_AT_ranges. This patch fixes
that.

Differential revision: https://reviews.llvm.org/D53353

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@344794 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed