Make ~/, round, ceil, floor, truncate return ints. Remove toInt.

tests/corelib/compare_to2_test.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.
 // Dart test for testing Math.min and Math.max.
 
 negate(x) => -x;
 
 main() {
   // Test matrix:
   var minNonZero = 5e-324;
   var maxDenormal = 2.225073858507201e-308;
   var minNormal = 2.2250738585072014e-308;
   var maxFraction = 0.9999999999999999;
   var minAbove1 = 1.0000000000000002;
   var maxNonInt = 4503599627370495.5;
-  var maxNonIntFloorAsDouble = maxNonInt.floor();
-  var maxNonIntFloorAsInt = maxNonIntFloorAsDouble.toInt();
+  var maxNonIntFloorAsInt = maxNonInt.floor();
+  var maxNonIntFloorAsDouble = maxNonIntFloorAsInt.toDouble();
   var maxExactIntAsDouble = 9007199254740992.0;
   var maxExactIntAsInt = 9007199254740992;
   var two53 = 1 << 53;  // Same as maxExactIntAsInt.
   var two53p1 = two53 + 1;
   var maxFiniteAsDouble = 1.7976931348623157e+308;
-  var maxFiniteAsInt = maxFiniteAsDouble.toInt();
+  var maxFiniteAsInt = maxFiniteAsDouble.truncate();

[Lasse Reichstein Nielsen, 2013/01/04 10:29:42]

Curious. This is actually a use-case for "toInt" :). You know that the value is
an integer, it's just typed as a double.

   int huge = 1 << 2000;
   int hugeP1 = huge + 1;
   var inf = double.INFINITY;
   var nan = double.NAN;
   var mnan = negate(nan);
   var matrix = [
       -inf,
       -hugeP1,
       -huge,
       [-maxFiniteAsDouble, -maxFiniteAsInt],
@@ skipping 47 matching lines @@
     for (int j = 0; j < matrix.length; j++) {
       var left = matrix[i];
       var right = matrix[j];
       if (left is List) {
         check(left, left, 0);
       }
       check(left, right, i == j ? 0 : (i < j ? -1 : 1));
     }
   }
 }