Rename int{x,32,64} to Int{X,32,64} in line with naming guidelines.

pkg/fixnum/lib/src/intx.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.
 
 part of fixnum;
 
 /**
  * A fixed-precision integer.
  */
-abstract class intx implements Comparable {
+abstract class IntX implements Comparable {
 
   // Arithmetic operations.
-  intx operator +(other);
-  intx operator -(other);
+  IntX operator +(other);
+  IntX operator -(other);
   // The unary '-' operator.  Note that -MIN_VALUE will be equal
   // to MIN_VALUE due to overflow.
-  intx operator -();
-  intx operator *(other);
-  intx operator %(other);
+  IntX operator -();
+  IntX operator *(other);
+  IntX operator %(other);
   // Truncating division.
-  intx operator ~/(other);
-  intx remainder(other);
+  IntX operator ~/(other);
+  IntX remainder(other);
 
   // Note: no / operator
 
   // Bit-operations.
-  intx operator &(other);
-  intx operator |(other);
-  intx operator ^(other);
-  intx operator ~();
-  intx operator <<(int shiftAmount);
-  intx operator >>(int shiftAmount);
-  intx shiftRightUnsigned(int shiftAmount);
+  IntX operator &(other);
+  IntX operator |(other);
+  IntX operator ^(other);
+  IntX operator ~();
+  IntX operator <<(int shiftAmount);
+  IntX operator >>(int shiftAmount);
+  IntX shiftRightUnsigned(int shiftAmount);
 
-  // Relational operations, may be applied to intx or int.
+  // Relational operations, may be applied to IntX or int.
   int compareTo(Comparable other);
   bool operator ==(other);
   bool operator <(other);
   bool operator <=(other);
   bool operator >(other);
   bool operator >=(other);
 
   // Testers.
   bool get isEven;
   bool get isMaxValue;
   bool get isMinValue;
   bool get isNegative;
   bool get isOdd;
   bool get isZero;
 
   int get hashCode;
 
-  intx abs();
+  IntX abs();
 
   /**
-   * Returns the number of leading zeros in this [intx] as an [int]
+   * Returns the number of leading zeros in this [IntX] as an [int]
    * between 0 and 64.
    */
   int numberOfLeadingZeros();
 
   /**
-   * Returns the number of trailing zeros in this [intx] as an [int]
+   * Returns the number of trailing zeros in this [IntX] as an [int]
    * between 0 and 64.
    */
   int numberOfTrailingZeros();
 
   /**
-   * Converts this [intx] to a [List] of [int], starting with the least
+   * Converts this [IntX] to a [List] of [int], starting with the least
    * significant byte.
    */
   List<int> toBytes();
 
   /**
-   * Converts this [intx] to an [int].  On some platforms, inputs with large
+   * Converts this [IntX] to an [int].  On some platforms, inputs with large
    * absolute values (i.e., > 2^52) may lose some of their low bits.
    */
   int toInt();
 
   /**
-   * Converts an [intx] to 32 bits.  Narrower values are sign extended and
+   * Converts an [IntX] to 32 bits.  Narrower values are sign extended and
    * wider values have their high bits truncated.
    */
-  int32 toInt32();
+  Int32 toInt32();
 
   /**
-   * Converts an [intx] to 64 bits.
+   * Converts an [IntX] to 64 bits.
    */
-  int64 toInt64();
+  Int64 toInt64();
 
   /**
-   * Returns the value of this [intx] as a decimal [String].
+   * Returns the value of this [IntX] as a decimal [String].
    */
   String toString();
 
   /**
-   * Returns the value of this [intx] as a hexadecimal [String].
+   * Returns the value of this [IntX] as a hexadecimal [String].
    */
   String toHexString();
 
   /**
-   * Returns the value of this [intx] as a [String] in the given radix.
+   * Returns the value of this [IntX] as a [String] in the given radix.
    * [radix] must be an integer between 2 and 16, inclusive.
    */
   String toRadixString(int radix);
 }