Use JSObjectVerify instead of trying to reimplement parts of it.

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index dbfe33aee10326101f9e48d2bbcf774114019f4d..b6dd42553cf404d8af27ce89d829a0efbfeff338 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -549,10 +549,7 @@ void SlicedString::SlicedStringVerify() {
 
 void JSBoundFunction::JSBoundFunctionVerify() {
   CHECK(IsJSBoundFunction());
-  if (HasFastProperties()) {
-    VerifyObjectField(kLengthOffset);
-    VerifyObjectField(kNameOffset);
-  }
+  JSObjectVerify();
   VerifyObjectField(kBoundThisOffset);
   VerifyObjectField(kBoundTargetFunctionOffset);
   VerifyObjectField(kBoundArgumentsOffset);