Update ICU to 58.1

source/common/ustrtrns.cpp

Index: source/common/ustrtrns.cpp
diff --git a/source/common/ustrtrns.cpp b/source/common/ustrtrns.cpp
index 5ec22f7a8aa09bec21965e847136093f896bd6bc..2867aaa3f262494836beac3b2507ee04772da011 100644
--- a/source/common/ustrtrns.cpp
+++ b/source/common/ustrtrns.cpp
@@ -1,7 +1,9 @@
+// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
 ******************************************************************************
 *
-*   Copyright (C) 2001-2014, International Business Machines
+*   Copyright (C) 2001-2016, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 ******************************************************************************
@@ -291,7 +293,8 @@ utf8_nextCharSafeBodyTerminated(const uint8_t **ps, UChar32 c) {
             illegal=1;
             break;
         }
-    case 2: /*fall through*/
+        U_FALLTHROUGH;
+    case 2:
         trail=(uint8_t)(*s++ - 0x80);
         if(trail>0x3f) {
             /* not a trail byte */
@@ -299,7 +302,8 @@ utf8_nextCharSafeBodyTerminated(const uint8_t **ps, UChar32 c) {
             break;
         }
         c=(c<<6)|trail;
-    case 1: /*fall through*/
+        U_FALLTHROUGH;
+    case 1:
         trail=(uint8_t)(*s++ - 0x80);
         if(trail>0x3f) {
             /* not a trail byte */
@@ -362,11 +366,13 @@ utf8_nextCharSafeBodyPointer(const uint8_t **ps, const uint8_t *limit, UChar32 c
                 illegal=1;
                 break;
             }
-        case 2: /*fall through*/
+            U_FALLTHROUGH;
+        case 2:
             trail=*s++;
             c=(c<<6)|(trail&0x3f);
             illegal|=(trail&0xc0)^0x80;
-        case 1: /*fall through*/
+            U_FALLTHROUGH;
+        case 1:
             trail=*s++;
             c=(c<<6)|(trail&0x3f);
             illegal|=(trail&0xc0)^0x80;