PHP 8.0 | Tokenizer/PHP: array return type keyword to T_STRING vs PHP8 union types

`array` keywords used as return types in PHP 8 union types would only be correctly changed to `T_STRING` if they were the first type in the union.

Fixed now.

Includes adding `T_STATIC` to the array of allowed tokens. While previously it wasn't an issue that the token was not included in the array, it is necessary for the token to be there to support union types.

This change will be tested via the union type related tests for the `File::getMethodProperties()` method.

Author: jrfnl

src/Tokenizers/PHP.php

@@ -1475,6 +1475,7 @@ function return types. We want to keep the parenthesis map clean,
                             T_SELF                 => T_SELF,
                             T_PARENT               => T_PARENT,
                             T_NAMESPACE            => T_NAMESPACE,
+                            T_STATIC               => T_STATIC,
                             T_NS_SEPARATOR         => T_NS_SEPARATOR,
                         ];
 
@@ -1509,12 +1510,14 @@ function return types. We want to keep the parenthesis map clean,
                         }//end for
 
                         // Any T_ARRAY tokens we find between here and the next
-                        // token that can't be part of the return type need to be
+                        // token that can't be part of the return type, need to be
                         // converted to T_STRING tokens.
                         for ($x; $x < $numTokens; $x++) {
-                            if (is_array($tokens[$x]) === false || isset($allowed[$tokens[$x][0]]) === false) {
+                            if ((is_array($tokens[$x]) === false && $tokens[$x] !== '|')
+                                || (is_array($tokens[$x]) === true && isset($allowed[$tokens[$x][0]]) === false)
+                            ) {
                                 break;
-                            } else if ($tokens[$x][0] === T_ARRAY) {
+                            } else if (is_array($tokens[$x]) === true && $tokens[$x][0] === T_ARRAY) {
                                 $tokens[$x][0] = T_STRING;
 
                                 if (PHP_CODESNIFFER_VERBOSITY > 1) {