Add test for newer ICU version

ext/intl/tests/formatter_get_locale_variant3.phpt

@@ -0,0 +1,50 @@
+--TEST--
+numfmt_get_locale()
+--SKIPIF--
+<?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '58.1') < 0) die('skip for ICU >= 58.1'); ?>
+--FILE--
+<?php
+
+/*
+ * Get locale.
+ */
+
+function ut_main()
+{
+    $locales = array(
+        'en_UK',
+        'en_US',
+        'fr_CA',
+    );
+
+    $loc_types = array(
+        Locale::ACTUAL_LOCALE    => 'actual',
+        Locale::VALID_LOCALE     => 'valid',
+    );
+
+    $res_str = '';
+
+    foreach( $locales as $locale )
+    {
+        $fmt = ut_nfmt_create( $locale, NumberFormatter::DECIMAL );
+        $res_str .= "$locale: ";
+        foreach( $loc_types as $loc_type => $loc_type_name )
+            $res_str .= sprintf( " %s=%s",
+            $loc_type_name,
+            dump( ut_nfmt_get_locale( $fmt, $loc_type ) ) );
+        $res_str .= "\n";
+    }
+
+    return $res_str;
+}
+
+include_once( 'ut_common.inc' );
+
+// Run the test
+ut_run();
+?>
+--EXPECT--
+en_UK:  actual='en' valid='en'
+en_US:  actual='en' valid='en_US'
+fr_CA:  actual='fr' valid='fr_CA'