Update ICU to 58.1

source/i18n/unicode/compactdecimalformat.h

Index: source/i18n/unicode/compactdecimalformat.h
diff --git a/source/i18n/unicode/compactdecimalformat.h b/source/i18n/unicode/compactdecimalformat.h
index 118312c22a23d9a27ec6a3a4aa1421ec1014788b..1fcc5c581e089d1b4b12dadab82ce5c2d5174da0 100644
--- a/source/i18n/unicode/compactdecimalformat.h
+++ b/source/i18n/unicode/compactdecimalformat.h
@@ -1,6 +1,8 @@
+// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
 ********************************************************************************
-*   Copyright (C) 2012-2015, International Business Machines
+*   Copyright (C) 2012-2016, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 ********************************************************************************
 *
@@ -166,7 +168,7 @@ public:
      * @param pos       On input: an alignment field, if desired.
      *                  On output: the offsets of the alignment field.
      * @return          Reference to 'appendTo' parameter.
-     * @draft ICU 56
+     * @stable ICU 56
      */
     virtual UnicodeString& format(int32_t number,
                                   UnicodeString& appendTo,
@@ -273,7 +275,7 @@ public:
      * @return          Reference to 'appendTo' parameter.
      * @internal
      */
-    virtual UnicodeString& format(const StringPiece &number,
+    virtual UnicodeString& format(StringPiece number,
                                   UnicodeString& appendTo,
                                   FieldPositionIterator* posIter,
                                   UErrorCode& status) const;
@@ -302,7 +304,7 @@ public:
      * Format a decimal number. Currently sets status to U_UNSUPPORTED_ERROR.
      * The number is a DigitList wrapper onto a floating point decimal number.
      * The default implementation in NumberFormat converts the decimal number
-     * to a double and formats that.  
+     * to a double and formats that.
      *
      * @param number    The number, a DigitList format Decimal Floating Point.
      * @param appendTo  Output parameter to receive result.
@@ -335,7 +337,7 @@ public:
      * CompactDecimalFormat does not support parsing. This implementation
      * sets status to U_UNSUPPORTED_ERROR
      *
-     * @param text      Unused. 
+     * @param text      Unused.
      * @param result    Does not change.
      * @param status    Always set to U_UNSUPPORTED_ERROR.
      * @stable ICU 51