Revert "Remove deprecated classes and functions in Date."

corelib/src/date.dart

Index: corelib/src/date.dart
diff --git a/corelib/src/date.dart b/corelib/src/date.dart
index 0b35247cd98e7d9b4d6983b58598a61f8ec15819..30c9d609a78e7cfb59420905b31f0a0e5a0203a0 100644
--- a/corelib/src/date.dart
+++ b/corelib/src/date.dart
@@ -48,6 +48,21 @@ interface Date extends Comparable, Hashable default DateImplementation {
         bool isUtc]);
 
   /**
+   * Constructs a [Date] instance based on the individual parts.
+   * [timeZone] may not be [:null:].
+   *
+   * *DEPRECATED*
+   */
+  Date.withTimeZone(int year,
+                    int month,
+                    int day,
+                    int hours,
+                    int minutes,
+                    int seconds,
+                    int milliseconds,
+                    TimeZone timeZone);
+
+  /**
    * Constructs a new [Date] instance with current date time value in the
    * local time zone.
    */
@@ -114,6 +129,17 @@ interface Date extends Comparable, Hashable default DateImplementation {
   Date toUtc();
 
   /**
+   * Returns a new [Date] in the given [targetTimeZone] time zone. The
+   * [value] of the new instance is equal to [:this.value:].
+   *
+   * This call is equivalent to
+   *  [:new Date.fromEpoch(this.value, targetTimeZone):].
+   *
+   * *DEPRECATED*
+   */
+  Date changeTimeZone(TimeZone targetTimeZone);
+
+  /**
    * Returns the abbreviated time-zone name.
    *
    * Examples: [:"CET":] or [:"CEST":].