Revise assertions and fix bug in the implementation of shifts

runtime/vm/intermediate_language.cc

 // 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.
 
 #include "vm/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/bootstrap.h"
 #include "vm/compiler.h"
 #include "vm/constant_propagator.h"
@@ skipping 1422 matching lines @@
 
     case Token::kMOD:
       return RangeUtils::CanBeZero(right_range());
 
     default:
       return can_overflow();
   }
 }
 
 
-bool ShiftMintOpInstr::has_shift_count_check() const {
-  return !RangeUtils::IsWithin(shift_range(), 0, kMintShiftCountLimit);
+bool ShiftMintOpInstr::IsShiftCountInRange() const {
+  return RangeUtils::IsWithin(shift_range(), 0, kMintShiftCountLimit);
 }
 
 
 bool BinaryIntegerOpInstr::RightIsPowerOfTwoConstant() const {
   if (!right()->definition()->IsConstant()) return false;
   const Object& constant = right()->definition()->AsConstant()->value();
   if (!constant.IsSmi()) return false;
   const intptr_t int_value = Smi::Cast(constant).Value();
   return Utils::IsPowerOfTwo(Utils::Abs(int_value));
 }
@@ skipping 2862 matching lines @@
                      "native function '%s' (%" Pd " arguments) cannot be found",
                      native_name().ToCString(), function().NumParameters());
   }
   set_is_auto_scope(auto_setup_scope);
   set_native_c_function(native_function);
 }
 
 #undef __
 
 }  // namespace dart