Reworked the way Process::RunThreadPlan and the ThreadPlanCallFunction interoperate to fix problems where
hitting auto-continue signals while running a thread plan would cause us to lose control of the debug 
session.

<rdar://problem/12993641>

llvm-svn: 174793
diff --git a/lldb/source/Target/ThreadPlanStepInstruction.cpp b/lldb/source/Target/ThreadPlanStepInstruction.cpp
index 8ce527e..e2cba61 100644
--- a/lldb/source/Target/ThreadPlanStepInstruction.cpp
+++ b/lldb/source/Target/ThreadPlanStepInstruction.cpp
@@ -81,7 +81,7 @@
 }
 
 bool
-ThreadPlanStepInstruction::PlanExplainsStop ()
+ThreadPlanStepInstruction::PlanExplainsStop (Event *event_ptr)
 {
     StopInfoSP stop_info_sp = GetPrivateStopReason();
     if (stop_info_sp)