Remove int.pow and double.pow from VM library.

runtime/lib/math.cc

 // Copyright (c) 2011, 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 <ctype.h>  // isspace.
 
 #include "vm/bootstrap_natives.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/exceptions.h"
@@ skipping 48 matching lines @@
 DEFINE_NATIVE_ENTRY(Math_exp, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(Double, operand, arguments->NativeArgAt(0));
   return Double::New(exp(operand.value()));
 }
 
 DEFINE_NATIVE_ENTRY(Math_log, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(Double, operand, arguments->NativeArgAt(0));
   return Double::New(log(operand.value()));
 }
 
+DEFINE_NATIVE_ENTRY(Math_doublePow, 2) {
+  const double operand =
+      Double::CheckedHandle(arguments->NativeArgAt(0)).value();
+  GET_NON_NULL_NATIVE_ARGUMENT(
+      Double, exponent_object, arguments->NativeArgAt(1));
+  const double exponent = exponent_object.value();
+  return Double::New(pow(operand, exponent));
+}
+
 
 // Returns the typed-data array store in '_Random._state' field.
 static RawTypedData* GetRandomStateArray(const Instance& receiver) {
   const Class& random_class = Class::Handle(receiver.clazz());
   const Field& state_field =
       Field::Handle(random_class.LookupField(Symbols::_state()));
   ASSERT(!state_field.IsNull());
   const Instance& state_field_value =
       Instance::Cast(Object::Handle(receiver.GetField(state_field)));
   ASSERT(!state_field_value.IsNull());
@@ skipping 40 matching lines @@
   do {
     seed = seed + 0x5A17;
   } while (seed == 0);
   array.SetUint32(0, static_cast<uint32_t>(seed));
   array.SetUint32(array.ElementSizeInBytes(),
       static_cast<uint32_t>(seed >> 32));
   return Object::null();
 }
 
 }  // namespace dart