[ThinLTO] AliasSummary should not have any references

Summary: References should only be on the aliasee.

Reviewers: pcc

Subscribers: llvm-commits, inglorion

Differential Revision: https://reviews.llvm.org/D37814

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313158 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed