Support profiler stack sampling in any situation.

src/frames-arm.h

Index: src/frames-arm.h
diff --git a/src/frames-arm.h b/src/frames-arm.h
index 0d1a27c3f3e2c36791df8489fc2cb4c0e6618293..930f6e0e0bd391fdb887fc000fede5bfb6a244a0 100644
--- a/src/frames-arm.h
+++ b/src/frames-arm.h
@@ -154,11 +154,9 @@ class InternalFrameConstants : public AllStatic {
 };
 
 
-inline Object* JavaScriptFrame::function() const {
+inline Object* JavaScriptFrame::function_slot_object() const {
   const int offset = JavaScriptFrameConstants::kFunctionOffset;
-  Object* result = Memory::Object_at(fp() + offset);
-  ASSERT(result->IsJSFunction());
-  return result;
+  return Memory::Object_at(fp() + offset);
 }