If we can't find an aliasee with a given name, maybe that's because the name
got a \1 in front of it.  Note that this is only useful for gcc-4.6 and earlier,
as gcc-4.7 has a more sensible system for aliases.  Fixes PR15090.


git-svn-id: https://llvm.org/svn/llvm-project/dragonegg/trunk@175524 91177308-0d34-0410-b5e6-96231b3b80d8