[turbofan] Introduce new JSConstructWithArrayLike operator.

src/code-factory.cc

 // Copyright 2014 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/code-factory.h"
 
 #include "src/bootstrapper.h"
 #include "src/builtins/builtins-descriptors.h"
 #include "src/ic/ic.h"
 #include "src/objects-inl.h"
@@ skipping 312 matching lines @@
                   CallForwardVarargsDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::Construct(Isolate* isolate) {
   return Callable(isolate->builtins()->Construct(),
                   ConstructTrampolineDescriptor(isolate));
 }
 
 // static
+Callable CodeFactory::ConstructWithArrayLike(Isolate* isolate) {

[petermarshall, 2017/06/21 08:46:19]

You should be able to use Builtins::CallableFor(masm->isolate(),
Builtins::kConstructWithArrayLike), meaning you don't need to add this
boilerplate in CodeFactory.

[Benedikt Meurer, 2017/06/21 12:05:25]

Done.

+  return Callable(isolate->builtins()->ConstructWithArrayLike(),
+                  ConstructWithArrayLikeDescriptor(isolate));
+}
+
+// static
 Callable CodeFactory::ConstructWithSpread(Isolate* isolate) {
   return Callable(isolate->builtins()->ConstructWithSpread(),
                   ConstructWithSpreadDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::ConstructFunction(Isolate* isolate) {
   return Callable(isolate->builtins()->ConstructFunction(),
                   ConstructTrampolineDescriptor(isolate));
 }
@@ skipping 75 matching lines @@
 }
 
 // static
 Callable CodeFactory::FunctionPrototypeBind(Isolate* isolate) {
   return Callable(isolate->builtins()->FunctionPrototypeBind(),
                   BuiltinDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8