This was causing us to create duplicate metadata on global variables. Debug info test case by Adrian Prantl, additional test cases by me. Fixes PR31012. Differential Revision: https://reviews.llvm.org/D26622 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286905 91177308-0d34-0410-b5e6-96231b3b80d8
Differential Revision: http://reviews.llvm.org/D21624 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273692 91177308-0d34-0410-b5e6-96231b3b80d8