Update ICU to 58.1

source/common/ucnv_u16.c

Index: source/common/ucnv_u16.c
diff --git a/source/common/ucnv_u16.c b/source/common/ucnv_u16.c
index f4f902a6bdc5e10828b56e225a7ea01ed437f85a..1458a8a4b320423a652d1db4d3782e148792a935 100644
--- a/source/common/ucnv_u16.c
+++ b/source/common/ucnv_u16.c
@@ -1,3 +1,5 @@
+// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*  
 **********************************************************************
 *   Copyright (C) 2002-2015, International Business Machines
@@ -621,7 +623,10 @@ static const UConverterImpl _UTF16BEImpl={
     _UTF16BEGetName,
     NULL,
     NULL,
-    ucnv_getNonSurrogateUnicodeSet
+    ucnv_getNonSurrogateUnicodeSet,
+
+    NULL,
+    NULL
 };
 
 static const UConverterStaticData _UTF16BEStaticData={
@@ -1217,7 +1222,10 @@ static const UConverterImpl _UTF16LEImpl={
     _UTF16LEGetName,
     NULL,
     NULL,
-    ucnv_getNonSurrogateUnicodeSet
+    ucnv_getNonSurrogateUnicodeSet,
+
+    NULL,
+    NULL
 };
 
 
@@ -1486,7 +1494,10 @@ static const UConverterImpl _UTF16Impl = {
     _UTF16GetName,
     NULL,
     NULL,
-    ucnv_getNonSurrogateUnicodeSet
+    ucnv_getNonSurrogateUnicodeSet,
+
+    NULL,
+    NULL
 };
 
 static const UConverterStaticData _UTF16StaticData = {
@@ -1528,7 +1539,10 @@ static const UConverterImpl _UTF16v2Impl = {
     _UTF16GetName,
     NULL,
     NULL,
-    ucnv_getNonSurrogateUnicodeSet
+    ucnv_getNonSurrogateUnicodeSet,
+
+    NULL,
+    NULL
 };
 
 static const UConverterStaticData _UTF16v2StaticData = {