Add more info to who called SuspendAll

Helps diagnose related jank.

Change-Id: I38191cdda723c6f0355d0197c494a3dff2b6653c
diff --git a/oatdump/oatdump.cc b/oatdump/oatdump.cc
index 344d2b5..c27b3d4 100644
--- a/oatdump/oatdump.cc
+++ b/oatdump/oatdump.cc
@@ -1539,7 +1539,7 @@
       {
         self->TransitionFromRunnableToSuspended(kNative);
         ThreadList* thread_list = Runtime::Current()->GetThreadList();
-        thread_list->SuspendAll();
+        thread_list->SuspendAll(__FUNCTION__);
         heap->RevokeAllThreadLocalAllocationStacks(self);
         thread_list->ResumeAll();
         self->TransitionFromSuspendedToRunnable();