Move the thread local functions to the Thread class in runtime/platform

runtime/platform/thread.h

Index: runtime/platform/thread.h
diff --git a/runtime/platform/thread.h b/runtime/platform/thread.h
index 603949e9ca7f3570dd03d2d98eb74659a2184584..7a5186e848d3aa1abbb20709501e50f9bf8bdf38 100644
--- a/runtime/platform/thread.h
+++ b/runtime/platform/thread.h
@@ -28,6 +28,12 @@ class Thread {
   // thread started successfuly and a system specific error code if
   // the thread failed to start.
   static int Start(ThreadStartFunction function, uword parameters);
+
+  static ThreadLocalKey kInvalidThreadLocal;

[siva, 2012/02/06 19:29:37]

data field is clubbed in with functions, shouldn't this be listed first?

Also should we call the field kUnsetThreadlocalKey?
or if you want to stick with Invalid make it
kInvalidThreadlocalKey so that it is obvious that the key is invalid not the
thread local value.

[Søren Gjesse, 2012/02/07 09:13:59]

Moved field and changed name to kUnsetThreadlocalKey.

+  static ThreadLocalKey CreateThreadLocal();
+  static void DeleteThreadLocal(ThreadLocalKey key);
+  static uword GetThreadLocal(ThreadLocalKey key);
+  static void SetThreadLocal(ThreadLocalKey key, uword value);
 };