0a1aa6cda2
This will make it easy for callers to see issues with and fix up calls to createTargetMachine after a future change to the params of TargetMachine. This matches other nearby enums. For downstream users, this should be a fairly straightforward replacement, e.g. s/CodeGenOpt::Aggressive/CodeGenOptLevel::Aggressive or s/CGFT_/CodeGenFileType::
To-do ----- * Instruction encodings * Tailcalls * Investigate loop alignment * Add builtins