Introduce a code stub version of Array.prototype.push

src/crankshaft/x64/lithium-codegen-x64.cc

Index: src/crankshaft/x64/lithium-codegen-x64.cc
diff --git a/src/crankshaft/x64/lithium-codegen-x64.cc b/src/crankshaft/x64/lithium-codegen-x64.cc
index ffd902961db21856973f3bee69eb2181c63767c7..bc98c460fe329e48e48f8a684d98e4209d625610 100644
--- a/src/crankshaft/x64/lithium-codegen-x64.cc
+++ b/src/crankshaft/x64/lithium-codegen-x64.cc
@@ -3001,7 +3001,7 @@ void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) {
 
   if (instr->hydrogen()->from_inlined()) {
     __ leap(result, Operand(rsp, -kFPOnStackSize + -kPCOnStackSize));
-  } else {
+  } else if (instr->hydrogen()->arguments_adaptor()) {
     // Check for arguments adapter frame.
     Label done, adapted;
     __ movp(result, Operand(rbp, StandardFrameConstants::kCallerFPOffset));
@@ -3020,6 +3020,8 @@ void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) {
     // Result is the frame pointer for the frame if not adapted and for the real
     // frame below the adaptor frame if adapted.
     __ bind(&done);
+  } else {
+    __ movp(result, rbp);
   }
 }