Change the Thread constructor over to take a Process& rather than a ProcessSP.  We can't create Threads with a NULL ProcessSP, so it makes no sense to use the SP.
Then make the Thread a Broadcaster, and get it to broadcast when the selected frame is changed (but only from the Command Line) and when Thread::ReturnFromFrame 
changes the stack.
Made the Driver use this notification to print the new thread status rather than doing it in the command.
Fixed a few places where people were setting their broadcaster class by hand rather than using the static broadcaster class call.

<rdar://problem/12383087>

llvm-svn: 165640
diff --git a/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp b/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
index 95e4a99..b63b42d 100644
--- a/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
@@ -32,15 +32,15 @@
 // Thread Registers
 //----------------------------------------------------------------------
 
-ThreadGDBRemote::ThreadGDBRemote (const ProcessSP &process_sp, lldb::tid_t tid) :
-    Thread(process_sp, tid),
+ThreadGDBRemote::ThreadGDBRemote (Process &process, lldb::tid_t tid) :
+    Thread(process, tid),
     m_thread_name (),
     m_dispatch_queue_name (),
     m_thread_dispatch_qaddr (LLDB_INVALID_ADDRESS)
 {
     ProcessGDBRemoteLog::LogIf(GDBR_LOG_THREAD, "%p: ThreadGDBRemote::ThreadGDBRemote (pid = %i, tid = 0x%4.4x)", 
                                this, 
-                               process_sp ? process_sp->GetID() : LLDB_INVALID_PROCESS_ID, 
+                               process.GetID(),
                                GetID());
 }