Merge branch '4.3' into 4.4

* 4.3:
  Fix travis script
  minor fix for wrong case
  [HttpFoundation] Fix `getMaxFilesize`
  [Cache] fix warning on PHP 7.4
  [Console] fix warning on PHP 7.4
  Don't add value of (default/static) objects to the signature
  fix(yml): fix comment in milti line value
  Make sure trace_level is always defined
  Fix bindings and tagged_locator
  Recompile container when translations directory changes

Author: nicolas-grekas

Parser.php

@@ -386,6 +386,9 @@ private function doParse(string $value, int $flags)
                     $value = '';
 
                     foreach ($this->lines as $line) {
+                        if ('' !== ltrim($line) && '#' === ltrim($line)[0]) {
+                            continue;
+                        }
                         // If the indentation is not consistent at offset 0, it is to be considered as a ParseError
                         if (0 === $this->offset && !$deprecatedUsage && isset($line[0]) && ' ' === $line[0]) {
                             throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);

Tests/ParserTest.php

@@ -2152,6 +2152,18 @@ public function indentedMappingData()
 
         return $tests;
     }
+
+    public function testMultiLineComment()
+    {
+        $yaml = <<<YAML
+parameters:
+    abc
+
+# Comment 
+YAML;
+
+        $this->assertSame(['parameters' => 'abc'], $this->parser->parse($yaml));
+    }
 }
 
 class B