Added a new packet to our GDB remote protocol:

	QListThreadsInStopReply
	
This GDB remote query command can enable added a "threads" key/value pair to all stop reply packets so that we always get a list of all threads in each stop reply packet. It increases performance if enabled (the reply to the "QListThreadsInStopReply" is "OK") by saving us from sending to command/reply pairs (the "qfThreadInfo" and "qsThreadInfo" packets), and also helps us keep the current process state up to date. 

llvm-svn: 154380
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
index 92f90c63..c7ac21d 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
@@ -71,6 +71,9 @@
     void
     QueryNoAckModeSupported ();
 
+    void
+    GetListThreadsInStopReplySupported ();
+
     bool
     SendAsyncSignal (int signo);
 
@@ -335,6 +338,7 @@
     //------------------------------------------------------------------
     lldb_private::LazyBool m_supports_not_sending_acks;
     lldb_private::LazyBool m_supports_thread_suffix;
+    lldb_private::LazyBool m_supports_threads_in_stop_reply;
     lldb_private::LazyBool m_supports_vCont_all;
     lldb_private::LazyBool m_supports_vCont_any;
     lldb_private::LazyBool m_supports_vCont_c;