Localize -disable-llvm-optzns handling to BackendConsumer::CreatePasses.
 - This is conceptually better since the only thing we want this option to do is
   preserve the internal module as constructed by IRgen, before running any
   passes.

 - This also fixes bugs in -disable-llvm-optzns handling with regards to debug
   info.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86691 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed