Generic/InterfaceNameSuffix: cleanup existing tests

- Remove redundant tests.
- Remove unnecessary whitespaces.
- Use proper punctuation in a code comment.
- Make some tests more descriptive by making the class name reflect what
is being tested.

Author: rodrigoprimo

src/Standards/Generic/Tests/NamingConventions/InterfaceNameSuffixUnitTest.inc

@@ -1,27 +1,7 @@
 <?php
 
-interface SomeNameInterface
-{
+interface SomeNameInterface {}
 
-}
+interface MissingInterfaceSuffix {} // Error.
 
-interface ISomeName // error
-{
-
-}
-
-interface ISomeNameInterface
-{
-
-}
-
-
-interface ISomeOtherNameinterface
-{
-
-}
-
-interface mInterface
-{
-
-}
+interface CaseOfSuffixIsNotEnforced_interFACE {}

src/Standards/Generic/Tests/NamingConventions/InterfaceNameSuffixUnitTest.php

@@ -29,7 +29,7 @@ final class InterfaceNameSuffixUnitTest extends AbstractSniffUnitTest
      */
     public function getErrorList()
     {
-        return [8 => 1];
+        return [5 => 1];
 
     }//end getErrorList()