feat(TraitNameSuffix): Enable sniff (#3557537)

Author: klausi

coder_sniffer/Drupal/ruleset.xml

@@ -52,6 +52,7 @@
   </rule>
   <rule ref="Generic.NamingConventions.ConstructorName"/>
   <rule ref="Generic.NamingConventions.InterfaceNameSuffix"/>
+  <rule ref="Generic.NamingConventions.TraitNameSuffix"/>
   <rule ref="Generic.NamingConventions.UpperCaseConstantName"/>
   <rule ref="Generic.PHP.DeprecatedFunctions"/>
   <rule ref="Generic.PHP.DisallowShortOpenTag">

tests/Drupal/bad/BadUnitTest.php

@@ -388,6 +388,10 @@ protected function getErrorList(string $testFile): array
                 1 => 1,
                 3 => 1,
             ];
+        case 'TraitNameSuffix.inc':
+            return [
+                6 => 1,
+            ];
         case 'UnusedUseStatementUnitTest.inc':
             return [
                 5  => 1,

tests/Drupal/bad/TraitNameSuffix.inc

@@ -0,0 +1,8 @@
+<?php
+
+/**
+ * Trait name must end with 'Trait'.
+ */
+trait TraitNameSuffix {
+
+}