Fix floating point issues on Windows.

runtime/lib/double.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 <math.h>
 
 #include "vm/bootstrap_natives.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/double_conversion.h"
@@ skipping 69 matching lines @@
     OS::Print("Double_trunc_div %f ~/ %f\n", left, right);
   }
   return Double::New(trunc(left / right));
 }
 
 
 DEFINE_NATIVE_ENTRY(Double_modulo, 2) {
   double left = Double::CheckedHandle(arguments->NativeArgAt(0)).value();
   GET_NATIVE_ARGUMENT(Double, right_object, arguments->NativeArgAt(1));
   double right = right_object.value();
-  double remainder = fmod(left, right);
+
+  double remainder = fmod_ieee(left, right);
   if (remainder == 0.0) {
     // We explicitely switch to the positive 0.0 (just in case it was negative).
     remainder = +0.0;
   } else if (remainder < 0) {
     if (right < 0) {
       remainder -= right;
     } else {
       remainder += right;
     }
   }
   return Double::New(remainder);
 }
 
 
 DEFINE_NATIVE_ENTRY(Double_remainder, 2) {
   double left = Double::CheckedHandle(arguments->NativeArgAt(0)).value();
   GET_NATIVE_ARGUMENT(Double, right_object, arguments->NativeArgAt(1));
   double right = right_object.value();
-  return Double::New(fmod(left, right));
+  return Double::New(fmod_ieee(left, right));
 }
 
 
 DEFINE_NATIVE_ENTRY(Double_greaterThan, 2) {
   const Double& left = Double::CheckedHandle(arguments->NativeArgAt(0));
   GET_NATIVE_ARGUMENT(Double, right, arguments->NativeArgAt(1));
   bool result = right.IsNull() ? false : (left.value() > right.value());
   if (FLAG_trace_intrinsified_natives) {
     OS::Print("Double_greaterThan %s > %s\n",
         left.ToCString(), right.ToCString());
@@ skipping 209 matching lines @@
 
 DEFINE_NATIVE_ENTRY(Double_getIsNegative, 1) {
   const Double& arg = Double::CheckedHandle(arguments->NativeArgAt(0));
   // Include negative zero, infinity.
   return Bool::Get(signbit(arg.value()) && !isnan(arg.value()));
 }
 
 // Add here only functions using/referring to old-style casts.
 
 }  // namespace dart