[turbofan] Mark {JSCreate} as potentially throwing.

test/unittests/compiler/js-create-lowering-unittest.cc

 // Copyright 2016 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/compiler/js-create-lowering.h"
 #include "src/code-factory.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-operator.h"
@@ skipping 47 matching lines @@
         UndefinedConstant(), outer_frame_state);
   }
 
   JSOperatorBuilder* javascript() { return &javascript_; }
 
  private:
   JSOperatorBuilder javascript_;
   CompilationDependencies deps_;
 };
 
+// -----------------------------------------------------------------------------
+// JSCreate
+
 TEST_F(JSCreateLoweringTest, JSCreate) {
   Handle<JSFunction> function = isolate()->object_function();
   Node* const target = Parameter(Type::HeapConstant(function, graph()->zone()));
   Node* const context = Parameter(Type::Any());
   Node* const effect = graph()->start();
-  Reduction r = Reduce(graph()->NewNode(javascript()->Create(), target, target,
-                                        context, EmptyFrameState(), effect));
+  Node* const control = graph()->start();
+  Reduction r =
+      Reduce(graph()->NewNode(javascript()->Create(), target, target, context,
+                              EmptyFrameState(), effect, control));
   ASSERT_TRUE(r.Changed());
   EXPECT_THAT(
       r.replacement(),
       IsFinishRegion(
           IsAllocate(IsNumberConstant(function->initial_map()->instance_size()),
-                     IsBeginRegion(effect), _),
+                     IsBeginRegion(effect), control),
           _));
 }
 
 // -----------------------------------------------------------------------------
 // JSCreateArguments
 
 TEST_F(JSCreateLoweringTest, JSCreateArgumentsInlinedMapped) {
   Node* const closure = Parameter(Type::Any());
   Node* const context = UndefinedConstant();
   Node* const effect = graph()->start();
@@ skipping 134 matching lines @@
   EXPECT_THAT(r.replacement(),
               IsFinishRegion(IsAllocate(IsNumberConstant(Context::SizeFor(
                                             Context::MIN_CONTEXT_SLOTS + 1)),
                                         IsBeginRegion(_), control),
                              _));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8