Group cases with the same return value

Change-Id: Ide57fbbe30c2d2f04c42af09784eb8fc4c8a52f2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3761974Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Jianxiao Lu <jianxiao.lu@intel.com>
Cr-Commit-Position: refs/heads/main@{#81715}

src/objects/js-objects.cc

@@ -2378,6 +2378,9 @@ int JSObject::GetHeaderSize(InstanceType type,
     case JS_STRING_ITERATOR_PROTOTYPE_TYPE:
     case JS_ARRAY_ITERATOR_PROTOTYPE_TYPE:
     case JS_TYPED_ARRAY_PROTOTYPE_TYPE:
+    case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
+    case JS_ARGUMENTS_OBJECT_TYPE:
+    case JS_ERROR_TYPE:
       return JSObject::kHeaderSize;
     case JS_GENERATOR_OBJECT_TYPE:
       return JSGeneratorObject::kHeaderSize;
@@ -2442,14 +2445,8 @@ int JSObject::GetHeaderSize(InstanceType type,
       return JSRegExp::kHeaderSize;
     case JS_REG_EXP_STRING_ITERATOR_TYPE:
       return JSRegExpStringIterator::kHeaderSize;
-    case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
-      return JSObject::kHeaderSize;
     case JS_MESSAGE_OBJECT_TYPE:
       return JSMessageObject::kHeaderSize;
-    case JS_ARGUMENTS_OBJECT_TYPE:
-      return JSObject::kHeaderSize;
-    case JS_ERROR_TYPE:
-      return JSObject::kHeaderSize;
     case JS_EXTERNAL_OBJECT_TYPE:
       return JSExternalObject::kHeaderSize;
     case JS_SHADOW_REALM_TYPE: