[stubs] Implement fast TF Builtin for Object.create

src/compiler/code-assembler.cc

Index: src/compiler/code-assembler.cc
diff --git a/src/compiler/code-assembler.cc b/src/compiler/code-assembler.cc
index 26407bd15bfec380a029fa94443d0572cf35adb4..3ba534dc14343732e569968121468c93d789690b 100644
--- a/src/compiler/code-assembler.cc
+++ b/src/compiler/code-assembler.cc
@@ -234,6 +234,11 @@ Node* CodeAssembler::Word32Shr(Node* value, int shift) {
                       : value;
 }
 
+Node* CodeAssembler::IsWordAligned(Node* value) {
+  return WordEqual(IntPtrConstant(0),
+                   WordAnd(value, IntPtrConstant((1 << kPointerSizeLog2) - 1)));
+}
+
 Node* CodeAssembler::ChangeUint32ToWord(Node* value) {
   if (raw_assembler_->machine()->Is64()) {
     value = raw_assembler_->ChangeUint32ToUint64(value);