Merge branch '2.7' into 2.8

* 2.7:
  Revert "bug #21436 [DependencyInjection] check for circular refs caused by method calls (xabbuh)"
  Static code analysis with Php Inspections (EA Extended)
  [VarDumper] Added missing persistent stream cast

Author: fabpot

Parser.php

@@ -626,7 +626,7 @@ private function parseBlockScalar($style, $chomping = '', $indentation = 0)
             $previousLineIndented = false;
             $previousLineBlank = false;
 
-            for ($i = 0; $i < count($blockLines); ++$i) {
+            for ($i = 0, $blockLinesCount = count($blockLines); $i < $blockLinesCount; ++$i) {
                 if ('' === $blockLines[$i]) {
                     $text .= "\n";
                     $previousLineIndented = false;