Merged the signals branch into trunk, with these changes:

* The team and thread kernel structures have been renamed to Team and Thread
  respectively and moved into the new BKernel namespace.
* Several (kernel add-on) sources have been converted from C to C++ since
  private kernel headers are included that are no longer C compatible.

Changes after merging:
* Fixed gcc 2 build (warnings mainly in the scary firewire bus manager).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40196 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/cpu.h

@@ -23,7 +23,12 @@
 
 
 struct kernel_args;
-struct thread;
+
+namespace BKernel {
+	struct Thread;
+}
+
+using BKernel::Thread;
 
 
 /* CPU local data structure */
@@ -45,7 +50,7 @@ typedef struct cpu_ent {
 	addr_t			fault_handler_stack_pointer;
 	jmp_buf			fault_jump_buffer;
 
-	struct thread*	running_thread;
+	Thread*			running_thread;
 	bool			invoke_scheduler;
 	bool			invoke_scheduler_if_idle;
 	bool			disabled;