Merge branch '2.7' into 2.8

* 2.7:
  [CS][2.7] yoda_style, no_unneeded_curly_braces, no_unneeded_final_method, semicolon_after_instruction

Author: nicolas-grekas

ClassCollectionLoader.php

@@ -215,7 +215,7 @@ public static function fixNamespaceDeclarations($source)
                 do {
                     $token = $tokens[++$i];
                     $output .= isset($token[1]) && 'b"' !== $token ? $token[1] : $token;
-                } while ($token[0] !== T_END_HEREDOC);
+                } while (T_END_HEREDOC !== $token[0]);
                 $output .= "\n";
                 $rawChunk = '';
             } elseif (T_CONSTANT_ENCAPSED_STRING === $token[0]) {

ClassMapGenerator.php

@@ -66,7 +66,7 @@ public static function createMap($dir)
 
             $path = $file->getRealPath() ?: $file->getPathname();
 
-            if (pathinfo($path, PATHINFO_EXTENSION) !== 'php') {
+            if ('php' !== pathinfo($path, PATHINFO_EXTENSION)) {
                 continue;
             }