Added static assert to BitField to ensure the contents fit within the field

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 1b0ded0aa82eaf2254a3742bc2d07aacefaf9f38..41e4f3439716a0338114d03449242f4505a95544 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -5469,9 +5469,10 @@ class Code: public HeapObject {
       : public BitField<CacheHolderFlag, HasUnwindingInfoField::kNext, 2> {};
   class KindField : public BitField<Kind, CacheHolderField::kNext, 5> {};
   STATIC_ASSERT(NUMBER_OF_KINDS <= KindField::kMax);
-  class ExtraICStateField : public BitField<ExtraICState, KindField::kNext,
-                                            PlatformSmiTagging::kSmiValueSize -
-                                                KindField::kNext + 1> {};
+  class ExtraICStateField
+      : public BitField<ExtraICState, KindField::kNext,
+                        PlatformSmiTagging::kSmiValueSize - KindField::kNext> {
+  };
 
   // KindSpecificFlags1 layout (STUB, BUILTIN and OPTIMIZED_FUNCTION)
   static const int kStackSlotsFirstBit = 0;