[turbofan] Next step towards shared operators.

src/compiler/common-operator-unittest.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/compiler/common-operator.h"
 #include "src/compiler/operator-properties-inl.h"
 #include "src/test/test-utils.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 12 matching lines @@
   CommonOperatorBuilder common_;
 };
 
 
 const int kArguments[] = {1, 5, 6, 42, 100, 10000, kMaxInt};
 
 }  // namespace
 
 
 TEST_F(CommonOperatorTest, ControlEffect) {
-  Operator* op = common()->ControlEffect();
+  const Operator* op = common()->ControlEffect();
   EXPECT_EQ(1, OperatorProperties::GetControlInputCount(op));
   EXPECT_EQ(1, OperatorProperties::GetTotalInputCount(op));
   EXPECT_EQ(0, OperatorProperties::GetControlOutputCount(op));
   EXPECT_EQ(1, OperatorProperties::GetEffectOutputCount(op));
   EXPECT_EQ(0, OperatorProperties::GetValueOutputCount(op));
 }
 
 
 TEST_F(CommonOperatorTest, ValueEffect) {
   TRACED_FOREACH(int, arguments, kArguments) {
-    Operator* op = common()->ValueEffect(arguments);
+    const Operator* op = common()->ValueEffect(arguments);
     EXPECT_EQ(arguments, OperatorProperties::GetValueInputCount(op));
     EXPECT_EQ(arguments, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, OperatorProperties::GetControlOutputCount(op));
     EXPECT_EQ(1, OperatorProperties::GetEffectOutputCount(op));
     EXPECT_EQ(0, OperatorProperties::GetValueOutputCount(op));
   }
 }
 
 
 TEST_F(CommonOperatorTest, Finish) {
   TRACED_FOREACH(int, arguments, kArguments) {
-    Operator* op = common()->Finish(arguments);
+    const Operator* op = common()->Finish(arguments);
     EXPECT_EQ(1, OperatorProperties::GetValueInputCount(op));
     EXPECT_EQ(arguments, OperatorProperties::GetEffectInputCount(op));
     EXPECT_EQ(arguments + 1, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, OperatorProperties::GetControlOutputCount(op));
     EXPECT_EQ(0, OperatorProperties::GetEffectOutputCount(op));
     EXPECT_EQ(1, OperatorProperties::GetValueOutputCount(op));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8