* vm.h no longer includes vm_types.h - only those that actually need access

to the private VM types are including vm_types.h now.
* Removed vm_page, vm_area, vm_cache, and vm_address_space typedefs; it's
  cleaner this way, and the actual types are only used in C++ files now,
  anyway.
* And that caused changes in many files...
* Made commpage.h self-containing.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22329 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/thread.cpp

@@ -24,7 +24,9 @@
 #include <tls.h>
 #include <user_runtime.h>
 #include <vfs.h>
+#include <vm.h>
 #include <vm_address_space.h>
+#include <vm_types.h>
 
 #include <boot/kernel_args.h>
 #include <util/khash.h>