ICU 56 update step 1

source/i18n/usrchimp.h

Index: source/i18n/usrchimp.h
diff --git a/source/i18n/usrchimp.h b/source/i18n/usrchimp.h
index b44943e89218894450cb6d5c63058a978b581a04..d454d6810abdef8c8c659322db6104fc848055a3 100644
--- a/source/i18n/usrchimp.h
+++ b/source/i18n/usrchimp.h
@@ -1,6 +1,6 @@
 /*
 **********************************************************************
-*   Copyright (C) 2001-2014 IBM and others. All rights reserved.
+*   Copyright (C) 2001-2015 IBM and others. All rights reserved.
 **********************************************************************
 *   Date        Name        Description
 *  08/13/2001   synwee      Creation.
@@ -69,8 +69,8 @@ struct PCEBuffer
     ~PCEBuffer();
 
     void  reset();
-    UBool empty() const;
-    void  put(uint64_t ce, int32_t ixLow, int32_t ixHigh);
+    UBool isEmpty() const;
+    void  put(uint64_t ce, int32_t ixLow, int32_t ixHigh, UErrorCode &errorCode);
     const PCEI *get();
 };