Merge branch '6.4' into 7.0

* 6.4:
  Revert "bug #57520 [SecurityBundle] Remove unused memory users’ `name` attribute from the XSD (MatTheCat)"
  [HttpKernel] Enable optional cache-warmers when cache-dir != build-dir
  [Filesystem] Fix Filesystem::remove() on Windows
  [DoctrineBridge] Fix compat with DI >= 6.4
  [String] Fix *String::snake methods

Author: nicolas-grekas

AbstractUnicodeString.php

@@ -346,8 +346,8 @@ public function reverse(): static
 
     public function snake(): static
     {
-        $str = $this->camel();
-        $str->string = mb_strtolower(preg_replace(['/(\p{Lu}+)(\p{Lu}\p{Ll})/u', '/([\p{Ll}0-9])(\p{Lu})/u'], '\1_\2', $str->string), 'UTF-8');
+        $str = clone $this;
+        $str->string = str_replace(' ', '_', mb_strtolower(preg_replace(['/(\p{Lu}+)(\p{Lu}\p{Ll})/u', '/([\p{Ll}0-9])(\p{Lu})/u'], '\1 \2', $str->string), 'UTF-8'));
 
         return $str;
     }

ByteString.php

@@ -342,8 +342,8 @@ public function slice(int $start = 0, ?int $length = null): static
 
     public function snake(): static
     {
-        $str = $this->camel();
-        $str->string = strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'], '\1_\2', $str->string));
+        $str = clone $this;
+        $str->string = str_replace(' ', '_', strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'], '\1 \2', $str->string)));
 
         return $str;
     }

Tests/AbstractAsciiTestCase.php

@@ -1075,6 +1075,8 @@ public static function provideSnake()
             ['symfony_is_great', 'symfonyIsGREAT'],
             ['symfony_is_really_great', 'symfonyIsREALLYGreat'],
             ['symfony', 'SYMFONY'],
+            ['symfony_is_great', 'SYMFONY IS GREAT'],
+            ['symfony_is_great', 'SYMFONY_IS_GREAT'],
         ];
     }