Code cleanup:
- don't use preprocessor macros
- use switch statements
- don't put anything in the lldb namespace, use "lldb_perf" namespace.
- Pass the action struct into each TestStep() for each step fill in
- Modify the ActionWanted class to have accessors to make the continue, next, finish, kill instead of using preproc macros



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@177332 91177308-0d34-0410-b5e6-96231b3b80d8