LTO: Maintain target triple, FeatureStr and CGOptLevel in the module or LTOCodeGenerator.

This makes it easier to create new TargetMachines on demand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245781 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed