[Yaml] Small optimization of the parser

Author: GuilhemN

src/Symfony/Component/Yaml/Parser.php

@@ -400,7 +400,7 @@ private function getNextEmbedBlock($indentation = null, $inSequence = false)
         $blockScalarIndentations = array();
 
         if ($this->isBlockScalarHeader()) {
-            $blockScalarIndentations[] = $this->getCurrentLineIndentation();
+            $blockScalarIndentations[] = $oldLineIndentation;
         }
 
         if (!$this->moveToNextLine()) {
@@ -450,14 +450,14 @@ private function getNextEmbedBlock($indentation = null, $inSequence = false)
             // terminate all block scalars that are more indented than the current line
             if (!empty($blockScalarIndentations) && $indent < $previousLineIndentation && trim($this->currentLine) !== '') {
                 foreach ($blockScalarIndentations as $key => $blockScalarIndentation) {
-                    if ($blockScalarIndentation >= $this->getCurrentLineIndentation()) {
+                    if ($blockScalarIndentation >= $indent) {
                         unset($blockScalarIndentations[$key]);
                     }
                 }
             }
 
             if (empty($blockScalarIndentations) && !$this->isCurrentLineComment() && $this->isBlockScalarHeader()) {
-                $blockScalarIndentations[] = $this->getCurrentLineIndentation();
+                $blockScalarIndentations[] = $indent;
             }
 
             $previousLineIndentation = $indent;