Adding default locative rule for Ukrainian

Prepending a default preposition to locative GRAMMAR forms
in Ukrainian language

Bug: T149550
Change-Id: I4649549dc3c722e53c7ea3accb6747df420e56f7

languages/data/grammarTransformations/uk.json

@@ -3,7 +3,8 @@
 		"authors": [
 			"Gutsul",
 			"Amir E. Aharoni (amir.aharoni@mail.huji.ac.il)",
-			"Eugene Gvozdetsky (epgvozdet@gmail.com)"
+			"Eugene Gvozdetsky (epgvozdet@gmail.com)",
+			"Base"
 		],
 		"comment": "These rules don't cover the whole grammar of the language, and are intended only for names of languages and Wikimedia projects."
 	},
@@ -16,6 +17,9 @@
 	"accusative": [
 		[ "(.+)ія$", "$1ію" ]
 	],
+	"locative": [
+		[ "(.+)$", "у $1" ]
+	],
 	"languagegen": [
 		[ "@metadata", [
 			"comment", "мова в родовому відмінку: '(з) української'"

tests/phpunit/languages/classes/LanguageUkTest.php

@@ -104,6 +104,11 @@ class LanguageUkTest extends LanguageClassesTestCase {
 				'Вікіпедія',
 				'accusative',
 			],
+			[
+				'у MediaWiki',
+				'MediaWiki',
+				'locative',
+			]
 		];
 	}
 }