ICU 56 update step 1

source/i18n/plurrule_impl.h

Index: source/i18n/plurrule_impl.h
diff --git a/source/i18n/plurrule_impl.h b/source/i18n/plurrule_impl.h
index 13729a38ed2ac403dd1b03d67db7247eab008403..7416fa7f48407e5d86ac6530be64cf9a04b225a7 100644
--- a/source/i18n/plurrule_impl.h
+++ b/source/i18n/plurrule_impl.h
@@ -1,6 +1,6 @@
 /*
 *******************************************************************************
-* Copyright (C) 2007-2013, International Business Machines Corporation and
+* Copyright (C) 2007-2015, International Business Machines Corporation and
 * others. All Rights Reserved.
 *******************************************************************************
 *
@@ -31,6 +31,8 @@ U_NAMESPACE_BEGIN
 
 class AndConstraint;
 class RuleChain;
+class DigitInterval;
+class VisibleDigits;
 
 static const UChar DOT             = ((UChar)0x002E);
 static const UChar SINGLE_QUOTE    = ((UChar)0x0027);
@@ -187,6 +189,7 @@ class U_I18N_API FixedDecimal: public UMemory {
     FixedDecimal(double  n, int32_t v, int64_t f);
     FixedDecimal(double n, int32_t);
     explicit FixedDecimal(double n);
+    explicit FixedDecimal(const VisibleDigits &n);
     FixedDecimal();
     FixedDecimal(const UnicodeString &s, UErrorCode &ec);
     FixedDecimal(const FixedDecimal &other);