[builtins] Improve performance of array.prototype.filter and map

test/cctest/test-code-stub-assembler.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/api.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/builtins/builtins-promise-gen.h"
 #include "src/code-factory.h"
 #include "src/code-stub-assembler.h"
 #include "src/compiler/node.h"
@@ skipping 1645 matching lines @@
     JSObject::SetElement(isolate, array, 0,
                          Handle<Smi>(Smi::FromInt(1), isolate), SLOPPY)
         .Check();
     JSObject::SetElement(isolate, array, 1,
                          Handle<Smi>(Smi::FromInt(2), isolate), SLOPPY)
         .Check();
     CodeStubArguments args(this, IntPtrConstant(kNumParams));
     Variable arg_index(this, MachineType::PointerRepresentation());
     Label bailout(this);
     arg_index.Bind(IntPtrConstant(0));
-    Node* length = BuildAppendJSArray(
-        kind_, HeapConstant(Handle<HeapObject>(isolate->context(), isolate)),
-        HeapConstant(array), args, arg_index, &bailout);
+    Node* length = BuildAppendJSArray(kind_, HeapConstant(array), args,
+                                      arg_index, &bailout);
     Return(length);
 
     Bind(&bailout);
     Return(SmiTag(IntPtrAdd(arg_index.value(), IntPtrConstant(2))));
 
     Handle<Code> code = tester->GenerateCode();
     CHECK(!code.is_null());
 
     FunctionTester ft(code, kNumParams);
 
@@ skipping 817 matching lines @@
   m.Return(m.SmiConstant(0));
 
   Handle<Code> code = data.GenerateCode();
   CHECK(!code.is_null());
   FunctionTester ft(code, kNumParams);
   CHECK_EQ(1, Handle<Smi>::cast(ft.Call().ToHandleChecked())->value());
 }
 
 }  // namespace internal
 }  // namespace v8