[stubs] A new approach to TF stubs

test/cctest/compiler/test-simplified-lowering.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.
 
 // TODO(jochen): Remove this after the setting is turned on globally.
 #define V8_IMMINENT_DEPRECATION_WARNINGS
 
 #include <limits>
 
 #include "src/ast/scopes.h"
@@ skipping 65 matching lines @@
     if (expected >= Smi::kMaxValue) return;
     Handle<Object> num = factory()->NewNumber(input);
     Object* result = this->Call(*num);
     CHECK(factory()->NewNumber(expected)->SameValue(result));
   }
 
   template <typename T>
   T* CallWithPotentialGC() {
     // TODO(titzer): we wrap the code in a JSFunction here to reuse the
     // JSEntryStub; that could be done with a special prologue or other stub.
-    Handle<JSFunction> fun = FunctionTester::ForMachineGraph(this->graph());
+    Handle<JSFunction> fun = FunctionTester::ForMachineGraph(this->graph(), 0);
     Handle<Object>* args = NULL;
     MaybeHandle<Object> result = Execution::Call(
         this->isolate(), fun, factory()->undefined_value(), 0, args);
     return T::cast(*result.ToHandleChecked());
   }
 
   Factory* factory() { return this->isolate()->factory(); }
   Heap* heap() { return this->isolate()->heap(); }
 };
 
@@ skipping 1857 matching lines @@
     t.Return(use);
     t.Lower();
 
     CHECK_EQ(d.expected, OpParameter<MachineType>(phi));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8