Fix android debug build.

test/cctest/compiler/test-gap-resolver.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/gap-resolver.h"
 
 #include "src/base/utils/random-number-generator.h"
 #include "test/cctest/cctest.h"
 
 using namespace v8::internal;
@@ skipping 105 matching lines @@
       if (!mo.IsRedundant() && seen.find(mo.destination()) == seen.end()) {
         parallel_move->AddMove(mo.source(), mo.destination(), main_zone());
         seen.insert(mo.destination());
       }
     }
     return parallel_move;
   }
 
  private:
   struct InstructionOperandComparator {
-    bool operator()(const InstructionOperand* x, const InstructionOperand* y) {
+    bool operator()(const InstructionOperand* x,
+                    const InstructionOperand* y) const {
       return (x->kind() < y->kind()) ||
              (x->kind() == y->kind() && x->index() < y->index());
     }
   };
 
   InstructionOperand* CreateRandomOperand() {
     int index = rng_->NextInt(6);
     switch (rng_->NextInt(5)) {
       case 0:
         return ConstantOperand::Create(index, main_zone());
@@ skipping 26 matching lines @@
       mi1.AssembleParallelMove(pm);
 
       MoveInterpreter mi2;
       GapResolver resolver(&mi2);
       resolver.Resolve(pm);
 
       CHECK(mi1.state() == mi2.state());
     }
   }
 }