Convert PHP 8 fix to Model file parser to use fix from Migration parser

This more clearly indicates that the change in functionality is due to a PHP 8 BC-incompatible change.

Refs: 9a018df

Author: bennothommo

classes/ModelFileParser.php

@@ -97,13 +97,12 @@ protected function extractNamespace($stream)
         if ($stream->getNextExpected(T_WHITESPACE) === null) {
             return null;
         }
-        $expectedCodesOrValues = [T_STRING, T_NS_SEPARATOR];
 
-        // namespace string on php 8.0 returns code 314 (T_NAME_QUALIFIED)
-        if (defined('T_NAME_QUALIFIED') && T_NAME_QUALIFIED > 0) {
-            $expectedCodesOrValues[] = T_NAME_QUALIFIED;
+        if (PHP_VERSION_ID >= 80000) {
+            return $stream->getNextExpectedTerminated([T_NAME_QUALIFIED], [T_WHITESPACE, ';']);
         }
-        return $stream->getNextExpectedTerminated($expectedCodesOrValues, [T_WHITESPACE, ';']);
+
+        return $stream->getNextExpectedTerminated([T_STRING, T_NS_SEPARATOR], [T_WHITESPACE, ';']);
     }
 
     protected function extractClassName($stream)