Delay sync with the parent thread in ProcessLinux/ProcessMonitor.

This patch removes a potential race condition between a process monitor thread
and its parent waiting to interrogate the success/failure of the launch.

llvm-svn: 123803
diff --git a/lldb/source/Plugins/Process/Linux/ProcessMonitor.h b/lldb/source/Plugins/Process/Linux/ProcessMonitor.h
index 86aad23..c016019 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessMonitor.h
+++ b/lldb/source/Plugins/Process/Linux/ProcessMonitor.h
@@ -197,7 +197,7 @@
     EnableIPC();
 
     static void
-    ServeOperation(ProcessMonitor *monitor);
+    ServeOperation(LaunchArgs *args);
 
     static bool
     DupDescriptor(const char *path, int fd, int flags);