deps: Intl: Check in "small-icu" 57.1

* this commit has "small" ICU 57.1.
See other related commit for tools to generate this commit.

Fixes: https://github.com/nodejs/node/issues/3476
PR-URL: https://github.com/nodejs/node/pull/6088
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/deps/icu-small/source/i18n/tolowtrn.cpp b/deps/icu-small/source/i18n/tolowtrn.cpp
new file mode 100644
index 0000000000..3edeaf81a6
--- /dev/null
+++ b/deps/icu-small/source/i18n/tolowtrn.cpp
@@ -0,0 +1,65 @@
+/*
+**********************************************************************
+*   Copyright (C) 2001-2007, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*   Date        Name        Description
+*   05/24/01    aliu        Creation.
+**********************************************************************
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_TRANSLITERATION
+
+#include "unicode/uchar.h"
+#include "unicode/ustring.h"
+#include "tolowtrn.h"
+#include "ustr_imp.h"
+#include "cpputils.h"
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(LowercaseTransliterator)
+
+/**
+ * Constructs a transliterator.
+ */
+LowercaseTransliterator::LowercaseTransliterator() :
+    CaseMapTransliterator(UNICODE_STRING("Any-Lower", 9), ucase_toFullLower)
+{
+}
+
+/**
+ * Destructor.
+ */
+LowercaseTransliterator::~LowercaseTransliterator() {
+}
+
+/**
+ * Copy constructor.
+ */
+LowercaseTransliterator::LowercaseTransliterator(const LowercaseTransliterator& o) :
+    CaseMapTransliterator(o)
+{
+}
+
+/**
+ * Assignment operator.
+ */
+/*LowercaseTransliterator& LowercaseTransliterator::operator=(
+                             const LowercaseTransliterator& o) {
+    CaseMapTransliterator::operator=(o);
+    return *this;
+}*/
+
+/**
+ * Transliterator API.
+ */
+Transliterator* LowercaseTransliterator::clone(void) const {
+    return new LowercaseTransliterator(*this);
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_TRANSLITERATION */