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. 



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@154380 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
index e207ebd..035c612 100644
--- a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -704,6 +704,7 @@
     m_gdb_comm.ResetDiscoverableSettings();
     m_gdb_comm.QueryNoAckModeSupported ();
     m_gdb_comm.GetThreadSuffixSupported ();
+    m_gdb_comm.GetListThreadsInStopReplySupported ();
     m_gdb_comm.GetHostInfo ();
     m_gdb_comm.GetVContSupported ('c');
     return error;
@@ -1262,8 +1263,9 @@
                 {
                     Mutex::Locker locker(m_thread_ids_mutex);                    
                     m_thread_ids.clear();
-                    // A comma separated list of all threads in the current process including
-                    // the thread for this stop reply packet
+                    // A comma separated list of all threads in the current
+                    // process that includes the thread for this stop reply
+                    // packet
                     size_t comma_pos;
                     lldb::tid_t tid;
                     while ((comma_pos = value.find(',')) != std::string::npos)