Summary: While its precedence should be higher than multiplicative, LLVM does not have a level for that, so for the time being just treat it as multiplicative.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32864

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@302156 91177308-0d34-0410-b5e6-96231b3b80d8