Add DoubleTestOp instruction

runtime/lib/double.dart

 // Copyright (c) 2012, 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.
 
 class _Double implements double {
   factory _Double.fromInteger(int value)
       native "Double_doubleFromInteger";
 
   Type get runtimeType => double;
 
@@ skipping 74 matching lines @@
   double _moduloFromInteger(int other) {
     return new _Double.fromInteger(other)._modulo(this);
   }
   double _remainderFromInteger(int other) {
     return new _Double.fromInteger(other)._remainder(this);
   }
   bool _greaterThanFromInteger(int other)
       native "Double_greaterThanFromInteger";
 
   bool get isNegative native "Double_getIsNegative";
-  bool get isInfinite native "Double_getIsInfinite";
-  bool get isNaN native "Double_getIsNaN";
+  bool get isInfinite => _isInfinite;

[Florian Schneider, 2016/10/18 20:34:20]

Why must these be private getters?

[zra, 2016/10/18 22:36:32]

Done.

+  bool get _isInfinite native "Double_getIsInfinite";
+  bool get isNaN => _isNaN;
+  bool get _isNaN native "Double_getIsNaN";
   bool get isFinite => !isInfinite && !isNaN;  // Can be optimized.
 
   double abs() {
     // Handle negative 0.0.
     if (this == 0.0) return 0.0;
     return this < 0.0 ? -this : this;
   }
 
   double get sign {
     if (this > 0.0) return 1.0;
@@ skipping 171 matching lines @@
     }
   }
 
   static const int _FRACTIONAL_BITS = // Bits to keep after the decimal point.
       const int.fromEnvironment("doubleFractionalBits", defaultValue: 20);
   static const double _BIAS = 1.5 * (1 << (52 - _FRACTIONAL_BITS));
 
   // Returns this with only _FRACTIONAL_BITS bits after the decimal point.
   double get p => this + _BIAS - _BIAS;
 }