[stubs] Store typeof string on Oddballs.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 3f1b3b4e19d24942088dd4fd84ed50b0fd2a7ac0..1819b32d0d3e8e7b31ee0887ca6f8bf02c56b5ee 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -5987,6 +5987,11 @@ class HObjectAccess final {
                          Representation::Integer32());
   }
 
+  static HObjectAccess ForOddballTypeOf() {
+    return HObjectAccess(kInobject, Oddball::kTypeOfOffset,
+                         Representation::HeapObject());
+  }
+
   static HObjectAccess ForElementsPointer() {
     return HObjectAccess(kElementsPointer, JSObject::kElementsOffset);
   }