Tests/Tokenizer: move tests

Move the tests directly related to the `Tokenizer\PHP` class into a `PHP` subdirectory.
Move the tests directly related to the `Tokenizer\Tokenizer` class into a `Tokenizer` subdirectory.

As there are five (soon three) Tokenizer classes, having the tests for each class in their own subdirectory makes it more straight forward to see what code is covered by tests.

Author: jrfnl

phpcs.xml.dist

@@ -144,7 +144,7 @@
 
     <!-- This test file specifically *needs* Windows line endings for testing purposes. -->
     <rule ref="Generic.Files.LineEndings.InvalidEOLChar">
-        <exclude-pattern>tests/Core/Tokenizer/StableCommentWhitespaceWinTest\.php</exclude-pattern>
+        <exclude-pattern>tests/Core/Tokenizer/PHP/StableCommentWhitespaceWinTest\.php</exclude-pattern>
     </rule>
 
     <!-- Avoid false positive with this sniff detecting itself -->

tests/Core/Tokenizer/AnonClassParenthesisOwnerTest.inc renamed to tests/Core/Tokenizer/PHP/AnonClassParenthesisOwnerTest.inc

@@ -7,7 +7,9 @@
  * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
  */
 
-namespace PHP_CodeSniffer\Tests\Core\Tokenizer;
+namespace PHP_CodeSniffer\Tests\Core\Tokenizer\PHP;
+
+use PHP_CodeSniffer\Tests\Core\Tokenizer\AbstractTokenizerTestCase;
 
 final class AnonClassParenthesisOwnerTest extends AbstractTokenizerTestCase
 {

tests/Core/Tokenizer/AnonClassParenthesisOwnerTest.php renamed to tests/Core/Tokenizer/PHP/AnonClassParenthesisOwnerTest.php

@@ -7,7 +7,9 @@
  * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
  */
 
-namespace PHP_CodeSniffer\Tests\Core\Tokenizer;
+namespace PHP_CodeSniffer\Tests\Core\Tokenizer\PHP;
+
+use PHP_CodeSniffer\Tests\Core\Tokenizer\AbstractTokenizerTestCase;
 
 final class AttributesTest extends AbstractTokenizerTestCase
 {

tests/Core/Tokenizer/AttributesTest.inc renamed to tests/Core/Tokenizer/PHP/AttributesTest.inc

@@ -7,7 +7,9 @@
  * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
  */
 
-namespace PHP_CodeSniffer\Tests\Core\Tokenizer;
+namespace PHP_CodeSniffer\Tests\Core\Tokenizer\PHP;
+
+use PHP_CodeSniffer\Tests\Core\Tokenizer\AbstractTokenizerTestCase;
 
 final class BackfillEnumTest extends AbstractTokenizerTestCase
 {

tests/Core/Tokenizer/AttributesTest.php renamed to tests/Core/Tokenizer/PHP/AttributesTest.php

@@ -7,7 +7,9 @@
  * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
  */
 
-namespace PHP_CodeSniffer\Tests\Core\Tokenizer;
+namespace PHP_CodeSniffer\Tests\Core\Tokenizer\PHP;
+
+use PHP_CodeSniffer\Tests\Core\Tokenizer\AbstractTokenizerTestCase;
 
 final class BackfillExplicitOctalNotationTest extends AbstractTokenizerTestCase
 {