[stubs] Enable graph verification for builtins.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index e9e43e5250cb81b6c4cc4693176c3632626f17b2..9ad51574c162ce65895e3025119957515ddefc8d 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -2742,7 +2742,7 @@ compiler::Node* NonEmptyShallowClone(CodeStubAssembler* assembler,
   ParameterMode param_mode = assembler->OptimalParameterMode();
 
   Node* length = assembler->LoadJSArrayLength(boilerplate);
-  capacity = assembler->UntagParameter(capacity, param_mode);
+  capacity = assembler->TaggedToParameter(capacity, param_mode);
 
   Node *array, *elements;
   std::tie(array, elements) =
@@ -2760,7 +2760,7 @@ compiler::Node* NonEmptyShallowClone(CodeStubAssembler* assembler,
         assembler->LoadObjectField(boilerplate_elements, offset));
   }
 
-  length = assembler->UntagParameter(length, param_mode);
+  length = assembler->TaggedToParameter(length, param_mode);
 
   assembler->Comment("copy boilerplate elements");
   assembler->CopyFixedArrayElements(kind, boilerplate_elements, elements,