Make sure we have a Add/Remove/Has function for various thing that can have attribute.

Summary: This also deprecated the get attribute function familly.

Reviewers: Wallbraker, whitequark, joker.eph, echristo, rafael, jyknight

Subscribers: axw, joker.eph, llvm-commits

Differential Revision: http://reviews.llvm.org/D19181

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272504 91177308-0d34-0410-b5e6-96231b3b80d8
10 files changed