Address review comments for r39595.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 6972 matching lines @@
 
   virtual void InferRange(RangeAnalysis* analysis, Range* range);
 
   virtual Definition* Canonicalize(FlowGraph* flow_graph);
 
   virtual Representation representation() const {
     return kUnboxedInt32;
   }
 
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
-    ASSERT(idx == 0 || idx == 1);
+    ASSERT((idx == 0) || (idx == 1));
     return kUnboxedInt32;
   }
 
   virtual intptr_t DeoptimizationTarget() const {
     // Direct access since this instruction cannot deoptimize, and the deopt-id
     // was inherited from another instruction that could deoptimize.
     return deopt_id_;
   }
 
   virtual bool MayThrow() const { return false; }
@@ skipping 1395 matching lines @@
       Isolate* isolate, bool opt) const {                                     \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_