Fix build failures with LLVM-GCC 4.2 on Mac (moar).

test/cctest/compiler/codegen-tester.h

Index: test/cctest/compiler/codegen-tester.h
diff --git a/test/cctest/compiler/codegen-tester.h b/test/cctest/compiler/codegen-tester.h
index 2cb9a4ef74fdd754590c05d36fa6b3eff11c12d9..42c8fcd166508d434bd34d7235e55460a2939f74 100644
--- a/test/cctest/compiler/codegen-tester.h
+++ b/test/cctest/compiler/codegen-tester.h
@@ -98,8 +98,9 @@ class RawMachineAssemblerTester
                             MachineRepresentation p2 = kMachineLast,
                             MachineRepresentation p3 = kMachineLast,
                             MachineRepresentation p4 = kMachineLast)
-      : MachineAssemblerTester(ReturnValueTraits<ReturnType>::Representation(),
-                               p0, p1, p2, p3, p4) {}
+      : MachineAssemblerTester<RawMachineAssembler>(
+            ReturnValueTraits<ReturnType>::Representation(), p0, p1, p2, p3,
+            p4) {}
 };
 
 
@@ -114,8 +115,9 @@ class StructuredMachineAssemblerTester
                                    MachineRepresentation p2 = kMachineLast,
                                    MachineRepresentation p3 = kMachineLast,
                                    MachineRepresentation p4 = kMachineLast)
-      : MachineAssemblerTester(ReturnValueTraits<ReturnType>::Representation(),
-                               p0, p1, p2, p3, p4) {}
+      : MachineAssemblerTester<StructuredMachineAssembler>(
+            ReturnValueTraits<ReturnType>::Representation(), p0, p1, p2, p3,
+            p4) {}
 };