Fix compilation with GCC 5.2

test/cctest/compiler/test-js-typed-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.
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-typed-lowering.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator-properties.h"
@@ skipping 201 matching lines @@
                               Type::Integral32()};
 
 
 static Type* kNumberTypes[] = {
     Type::UnsignedSmall(), Type::Negative32(),  Type::Unsigned31(),
     Type::SignedSmall(),   Type::Signed32(),    Type::Unsigned32(),
     Type::Integral32(),    Type::MinusZero(),   Type::NaN(),
     Type::OrderedNumber(), Type::PlainNumber(), Type::Number()};
 
 
-static Type* kJSTypes[] = {Type::Undefined(), Type::Null(),   Type::Boolean(),
-                           Type::Number(),    Type::String(), Type::Object()};
-
-
 static Type* I32Type(bool is_signed) {
   return is_signed ? Type::Signed32() : Type::Unsigned32();
 }
 
 
 static IrOpcode::Value NumberToI32(bool is_signed) {
   return is_signed ? IrOpcode::kNumberToInt32 : IrOpcode::kNumberToUint32;
 }
 
 
@@ skipping 1018 matching lines @@
           CHECK_EQ(p1, r->InputAt(0));
           CHECK_EQ(p0, r->InputAt(1));
         } else {
           CHECK_EQ(p0, r->InputAt(0));
           CHECK_EQ(p1, r->InputAt(1));
         }
       }
     }
   }
 }