Two null Decl*'s don't refer to the same declaration, because they
don't refer to anything. Amusingly, we were relying on this in one
place. Thanks to Chandler for noticing the weirdness in
declaresSameEntity.

llvm-svn: 146659
2 files changed
tree: c9cae431de102c0aee381dd56a8afc977ba0866b
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. libcxxabi/
  6. lldb/
  7. llvm/
  8. polly/