Address review comments for r39595.

runtime/vm/flow_graph_range_analysis.cc

 // Copyright (c) 2014, 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.
 
 #include "vm/flow_graph_range_analysis.h"
 
 #include "vm/bit_vector.h"
 #include "vm/il_printer.h"
 
 namespace dart {
@@ skipping 669 matching lines @@
     while (def->IsConstraint()) {
       def = def->AsConstraint()->value()->definition();
     }
     constraints_[i]->ReplaceUsesWith(def);
     constraints_[i]->RemoveFromGraph();
   }
 }
 
 
 static void NarrowBinaryMintOp(BinaryMintOpInstr* mint_op) {
-  if (Range::Fits(mint_op->range(), RangeBoundary::kRangeBoundaryInt32) &&
-      Range::Fits(mint_op->left()->definition()->range(),
+  if (RangeUtils::Fits(mint_op->range(), RangeBoundary::kRangeBoundaryInt32) &&
+      RangeUtils::Fits(mint_op->left()->definition()->range(),
                   RangeBoundary::kRangeBoundaryInt32) &&
-      Range::Fits(mint_op->right()->definition()->range(),
+      RangeUtils::Fits(mint_op->right()->definition()->range(),
                   RangeBoundary::kRangeBoundaryInt32) &&
       BinaryInt32OpInstr::IsSupported(mint_op->op_kind(),
                                       mint_op->left(),
                                       mint_op->right())) {
     BinaryInt32OpInstr* int32_op =
         new BinaryInt32OpInstr(mint_op->op_kind(),
                                mint_op->left()->CopyWithType(),
                                mint_op->right()->CopyWithType(),
                                mint_op->DeoptimizationTarget());
     int32_op->set_range(*mint_op->range());
     int32_op->set_overflow(false);
     mint_op->ReplaceWith(int32_op, NULL);
   }
 }
 
 
 static void NarrowShiftMintOp(ShiftMintOpInstr* mint_op) {
-  if (Range::Fits(mint_op->range(), RangeBoundary::kRangeBoundaryInt32) &&
-      Range::Fits(mint_op->left()->definition()->range(),
+  if (RangeUtils::Fits(mint_op->range(), RangeBoundary::kRangeBoundaryInt32) &&
+      RangeUtils::Fits(mint_op->left()->definition()->range(),
                   RangeBoundary::kRangeBoundaryInt32) &&
-      Range::Fits(mint_op->right()->definition()->range(),
+      RangeUtils::Fits(mint_op->right()->definition()->range(),
                   RangeBoundary::kRangeBoundaryInt32) &&
       BinaryInt32OpInstr::IsSupported(mint_op->op_kind(),
                                       mint_op->left(),
                                       mint_op->right())) {
     BinaryInt32OpInstr* int32_op =
         new BinaryInt32OpInstr(mint_op->op_kind(),
                                mint_op->left()->CopyWithType(),
                                mint_op->right()->CopyWithType(),
                                mint_op->DeoptimizationTarget());
     int32_op->set_range(*mint_op->range());
@@ skipping 1493 matching lines @@
     }
   } while (CanonicalizeMaxBoundary(&max) ||
            CanonicalizeMinBoundary(&canonical_length));
 
   // Failed to prove that maximum is bounded with array length.
   return false;
 }
 
 
 }  // namespace dart