Update ICU to 58.1

source/i18n/rbt_pars.cpp

Index: source/i18n/rbt_pars.cpp
diff --git a/source/i18n/rbt_pars.cpp b/source/i18n/rbt_pars.cpp
index bb7f282f1a41dbbda4bb1bff23ffc0045c6f928e..17f7526646953cf7ba7e0e51a522efae899bb182 100644
--- a/source/i18n/rbt_pars.cpp
+++ b/source/i18n/rbt_pars.cpp
@@ -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) 1999-2015, International Business Machines
+ *   Copyright (C) 1999-2016, International Business Machines
  *   Corporation and others.  All Rights Reserved.
  **********************************************************************
  *   Date        Name        Description
@@ -1102,7 +1104,7 @@ void TransliteratorParser::parseRules(const UnicodeString& rule,
 
             for (int32_t j = 0; j < data->variablesLength; j++) {
                 data->variables[j] =
-                    ((UnicodeFunctor*)variablesVector.elementAt(j));
+                    static_cast<UnicodeFunctor *>(variablesVector.elementAt(j));
             }
             
             data->variableNames.removeAll();