Update ICU to 54.1 step 1

source/i18n/bocsu.h

Index: source/i18n/bocsu.h
diff --git a/source/i18n/bocsu.h b/source/i18n/bocsu.h
index 37165b5e77e5d0b3309d1da59fd2162754e3bdc3..0f89a0fbeb06dab84eedb9ff24b86b3e6b1b3cd9 100644
--- a/source/i18n/bocsu.h
+++ b/source/i18n/bocsu.h
@@ -1,9 +1,9 @@
 /*
 *******************************************************************************
-*   Copyright (C) 2001-2011, International Business Machines
+*   Copyright (C) 2001-2014, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *******************************************************************************
-*   file name:  bocsu.c
+*   file name:  bocsu.h
 *   encoding:   US-ASCII
 *   tab size:   8 (not used)
 *   indentation:4
@@ -151,14 +151,8 @@ U_NAMESPACE_END
     } \
 }
 
-U_CFUNC void
-u_writeIdenticalLevelRun(const UChar *s, int32_t length, icu::ByteSink &sink);
-
-U_CFUNC int32_t
-u_writeIdenticalLevelRunTwoChars(UChar32 first, UChar32 second, uint8_t *p);
-
-U_CFUNC uint8_t *
-u_writeDiff(int32_t diff, uint8_t *p);
+U_CFUNC UChar32
+u_writeIdenticalLevelRun(UChar32 prev, const UChar *s, int32_t length, icu::ByteSink &sink);
 
 #endif /* #if !UCONFIG_NO_COLLATION */