Removed one bogus CompilationInfo constructor.

test/cctest/compiler/test-linkage.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/v8.h"
 
+#include "src/code-stubs.h"
 #include "src/compiler.h"
 #include "src/zone.h"
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/operator.h"
 #include "src/compiler/pipeline.h"
@@ skipping 49 matching lines @@
     CHECK_EQ(1 + i, static_cast<int>(descriptor->JSParameterCount()));
     CHECK_EQ(1, static_cast<int>(descriptor->ReturnCount()));
     CHECK_EQ(Operator::kNoProperties, descriptor->properties());
     CHECK_EQ(true, descriptor->IsJSFunctionCall());
   }
 }
 
 
 TEST(TestLinkageCodeStubIncoming) {
   Isolate* isolate = CcTest::InitIsolateOnce();
-  CompilationInfoWithZone info(static_cast<CodeStub*>(NULL), isolate);
+  ToNumberStub stub(isolate);
+  CompilationInfoWithZone info(&stub, isolate);
   CallDescriptor* descriptor = Linkage::ComputeIncoming(info.zone(), &info);
-  // TODO(titzer): test linkage creation with a bonafide code stub.
-  // this just checks current behavior.
-  CHECK(!descriptor);
+  CHECK(descriptor);
+  CHECK_EQ(1, static_cast<int>(descriptor->JSParameterCount()));
+  CHECK_EQ(1, static_cast<int>(descriptor->ReturnCount()));
+  CHECK_EQ(Operator::kNoProperties, descriptor->properties());
+  CHECK_EQ(false, descriptor->IsJSFunctionCall());
 }
 
 
 TEST(TestLinkageJSCall) {
   HandleAndZoneScope handles;
   Handle<JSFunction> function = Compile("a + c");
   CompilationInfoWithZone info(function);
 
   for (int i = 0; i < 32; i++) {
     CallDescriptor* descriptor = Linkage::GetJSCallDescriptor(
@@ skipping 11 matching lines @@
   // TODO(titzer): test linkage creation for outgoing runtime calls.
 }
 
 
 TEST(TestLinkageStubCall) {
   // TODO(titzer): test linkage creation for outgoing stub calls.
 }
 
 
 #endif  // V8_TURBOFAN_TARGET