Reinstate the optimization suppressing available_externally functions
at -O0. The only change from the previous patch is that we don't try
to generate virtual method thunks for an available_externally
function.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108230 91177308-0d34-0410-b5e6-96231b3b80d8
7 files changed