Mark the "step over single instruction" plan private in the StopInfoWatchpoint::PerformAction to ensure that the watchpoint not the step is reported as the stop reason.  Also, stash away & restore the current stop reason just so it can't go away on us.
Mark the "step over single instruction" plan private in the StopInfoWatchpoint::PerformAction to
ensure that the watchpoint not the step is reported as the stop reason.  Also, stash away & restore
the current stop reason just so it can't go away on us.


git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@185474 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb