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

runtime/lib/integers.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.
 
 // TODO(srdjan): fix limitations.
 // - shift amount must be a Smi.
 class _IntegerImplementation {
   factory _IntegerImplementation._uninstantiable() {
     throw new UnsupportedError(
         "_IntegerImplementation can only be allocated by the VM");
@@ skipping 96 matching lines @@
       }
       if (d.isNaN) {
         return LESS;
       }
       if (MIN_EXACT_INT_TO_DOUBLE <= this && this <= MAX_EXACT_INT_TO_DOUBLE) {
         // Let the double implementation deal with -0.0.
         return -(d.compareTo(this.toDouble()));
       } else {
         // If abs(other) > MAX_EXACT_INT_TO_DOUBLE, then other has an integer
         // value (no bits below the decimal point).
-        other = d.toInt();
+        other = d.truncate();
       }
     }
     if (this < other) {
       return LESS;
     } else if (this > other) {
       return GREATER;
     } else {
       return EQUAL;
     }
   }
@@ skipping 20 matching lines @@
     if (lowerLimit.compareTo(upperLimit) > 0) {
       throw new ArgumentError(lowerLimit);
     }
     if (lowerLimit.isNaN) return lowerLimit;
     // Note that we don't need to care for -0.0 for the lower limit.
     if (this < lowerLimit) return lowerLimit;
     if (this.compareTo(upperLimit) > 0) return upperLimit;
     return this;
   }
 
-  int toInt() { return this; }
   double toDouble() { return new _Double.fromInteger(this); }
 
   int pow(int exponent) {
     double res = this.toDouble().pow(exponent);
     if (res.isInfinite) {
       // Use Bigint instead.
       throw "_IntegerImplementation.pow not implemented for large integers.";
     }
-    return res.toInt();
+    return res.truncate();
   }
 
   String toStringAsFixed(int fractionDigits) {
     return this.toDouble().toStringAsFixed(fractionDigits);
   }
   String toStringAsExponential([int fractionDigits]) {
     return this.toDouble().toStringAsExponential(fractionDigits);
   }
   String toStringAsPrecision(int precision) {
     return this.toDouble().toStringAsPrecision(precision);
@@ skipping 85 matching lines @@
     }
   }
   int _shlFromInt(int other) {
     throw const OutOfMemoryError();
   }
 
   int pow(int exponent) {
     throw "Bigint.pow not implemented";
   }
 }