ICU 56 update step 1

source/common/servnotf.h

Index: source/common/servnotf.h
diff --git a/source/common/servnotf.h b/source/common/servnotf.h
index 4fae2f3981b391392bf91bdfa008f0f3d1250505..362696f5388d05820441e231c3e8d3abd02999d5 100644
--- a/source/common/servnotf.h
+++ b/source/common/servnotf.h
@@ -1,6 +1,6 @@
 /**
  *******************************************************************************
- * Copyright (C) 2001-2011, International Business Machines Corporation and    *
+ * Copyright (C) 2001-2014, International Business Machines Corporation and    *
  * others. All Rights Reserved.                                                *
  *******************************************************************************
  */
@@ -47,7 +47,7 @@ public:
     }
 
     virtual UnicodeString& debugClass(UnicodeString& result) const {
-      return result.append("Key");
+      return result.append((UnicodeString)"Key");
     }
 #endif
 };