<rdar://problem/12649160>

Added the ability to debug through your process exec'ing itself to the same architecture.

llvm-svn: 169340
diff --git a/lldb/source/Target/Thread.cpp b/lldb/source/Target/Thread.cpp
index 4c6995c..7a5aafb 100644
--- a/lldb/source/Target/Thread.cpp
+++ b/lldb/source/Target/Thread.cpp
@@ -1574,6 +1574,7 @@
     case eStopReasonWatchpoint:   return "watchpoint";
     case eStopReasonSignal:       return "signal";
     case eStopReasonException:    return "exception";
+    case eStopReasonExec:         return "exec";
     case eStopReasonPlanComplete: return "plan complete";
     }