Removed funky Maybe constructor and made fields private.

src/hydrogen-representation-changes.cc

 // Copyright 2013 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/hydrogen-representation-changes.h"
 
 namespace v8 {
 namespace internal {
 
 void HRepresentationChangesPhase::InsertRepresentationChangeForUse(
@@ skipping 11 matching lines @@
   // information we treat constants like normal instructions and insert the
   // change instructions for them.
   HInstruction* new_value = NULL;
   bool is_truncating_to_smi = use_value->CheckFlag(HValue::kTruncatingToSmi);
   bool is_truncating_to_int = use_value->CheckFlag(HValue::kTruncatingToInt32);
   if (value->IsConstant()) {
     HConstant* constant = HConstant::cast(value);
     // Try to create a new copy of the constant with the new representation.
     if (is_truncating_to_int && to.IsInteger32()) {
       Maybe<HConstant*> res = constant->CopyToTruncatedInt32(graph()->zone());
-      if (res.has_value) new_value = res.value;
+      if (res.IsJust()) new_value = res.FromJust();
     } else {
       new_value = constant->CopyToRepresentation(to, graph()->zone());
     }
   }
 
   if (new_value == NULL) {
     new_value = new(graph()->zone()) HChange(
         value, to, is_truncating_to_smi, is_truncating_to_int);
     if (!use_value->operand_position(use_index).IsUnknown()) {
       new_value->set_position(use_value->operand_position(use_index));
@@ skipping 161 matching lines @@
     // Process normal instructions.
     for (HInstruction* current = block->first(); current != NULL; ) {
       HInstruction* next = current->next();
       InsertRepresentationChangesForValue(current);
       current = next;
     }
   }
 }
 
 } }  // namespace v8::internal