PMB: Add an importing WPD pass to the start of the ThinLTO backend pipeline.

Differential Revision: https://reviews.llvm.org/D30008

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295260 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed