[stubs] Convert Internal/ArraySingleArgumentsConstructor to a TurboFan stub

src/runtime/runtime-array.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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/code-stubs.h"
 #include "src/conversions-inl.h"
 #include "src/elements.h"
@@ skipping 373 matching lines @@
 #ifdef DEBUG
   if (!no_caller_args) {
     CONVERT_SMI_ARG_CHECKED(arg_count, parameters_start + 1);
     DCHECK(arg_count == caller_args->length());
   }
 #endif
   return ArrayConstructorCommon(isolate, constructor, constructor,
                                 Handle<AllocationSite>::null(), caller_args);
 }
 
+RUNTIME_FUNCTION(Runtime_ArraySingleArgumentConstructor) {
+  HandleScope scope(isolate);
+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, constructor, 0);
+  Object** argument_base = reinterpret_cast<Object**>(args[1]);
+  CONVERT_SMI_ARG_CHECKED(argument_count, 2);
+  CONVERT_ARG_HANDLE_CHECKED(Object, raw_site, 3);
+  Handle<AllocationSite> casted_site =
+      raw_site->IsUndefined() ? Handle<AllocationSite>::null()
+                              : Handle<AllocationSite>::cast(raw_site);
+  Arguments constructor_args(argument_count, argument_base);
+  return ArrayConstructorCommon(isolate, constructor, constructor, casted_site,
+                                &constructor_args);
+}
 
 RUNTIME_FUNCTION(Runtime_NormalizeElements) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, array, 0);
   RUNTIME_ASSERT(!array->HasFixedTypedArrayElements() &&
                  !array->IsJSGlobalProxy());
   JSObject::NormalizeElements(array);
   return *array;
 }
@@ skipping 89 matching lines @@
   CONVERT_ARG_HANDLE_CHECKED(Object, original_array, 0);
   Handle<Object> constructor;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, constructor,
       Object::ArraySpeciesConstructor(isolate, original_array));
   return *constructor;
 }
 
 }  // namespace internal
 }  // namespace v8