Unify pubsection/gnu pubsection printing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191407 91177308-0d34-0410-b5e6-96231b3b80d8
Dump the normal dwarf pubtypes section as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191408 91177308-0d34-0410-b5e6-96231b3b80d8
Add gnu pubsections as options to llvm-dwarfdump.

Argument spelling feedback welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191409 91177308-0d34-0410-b5e6-96231b3b80d8