Merge branch '4.4' into 5.1

* 4.4:
  add mising sr (latn & cyrl) translations
  [Cache] fix ProxyAdapter not persisting items with infinite expiration
  [HttpClient] fail properly when the server replies with HTTP/0.9
  Fix CS
  [Cache] Limit cache version character range
  [DI] dump OS-indepent paths in the compiled container
  allow consumers to mock all methods

Author: nicolas-grekas

Extension/Core/DataTransformer/NumberToLocalizedStringTransformer.php

@@ -237,7 +237,7 @@ private function round($number)
     {
         if (null !== $this->scale && null !== $this->roundingMode) {
             // shift number to maintain the correct scale during rounding
-            $roundingCoef = pow(10, $this->scale);
+            $roundingCoef = 10 ** $this->scale;
             // string representation to avoid rounding errors, similar to bcmul()
             $number = (string) ($number * $roundingCoef);
 

Tests/AbstractRequestHandlerTest.php

@@ -338,10 +338,10 @@ public function testAddFormErrorIfPostMaxSizeExceeded($contentLength, $iniMax, $
     public function getPostMaxSizeFixtures()
     {
         return [
-            [pow(1024, 3) + 1, '1G', true, ['{{ max }}' => '1G']],
-            [pow(1024, 3), '1G', false],
-            [pow(1024, 2) + 1, '1M', true, ['{{ max }}' => '1M']],
-            [pow(1024, 2), '1M', false],
+            [1024 ** 3 + 1, '1G', true, ['{{ max }}' => '1G']],
+            [1024 ** 3, '1G', false],
+            [1024 ** 2 + 1, '1M', true, ['{{ max }}' => '1M']],
+            [1024 ** 2, '1M', false],
             [1024 + 1, '1K', true, ['{{ max }}' => '1K']],
             [1024, '1K', false],
             [null, '1K', false],