Merge branch '7.3' into 7.4

* 7.3:
  [Config] Fix `ReflectionClassResource` hash validation
  [Cache] Fix internal representation of non-static values
  [Cache] Make `TagAwareAdapter` registrable as a service
  refactor: Unify & more humane translation message
  fix Resources translations validators.pt.xlf
  [Security] Pass attributes to nested `ChainUserProviders`
  [Validator] Update translation for the Video constraint
  [Messenger] Firebird Database - incompatibility with expected lowercase columns
  SQLSRV: Change column type from TEXT to STRING
  Fix exception catch when deleting temporary table in the sameDatabaseChecker
  [JsonStreamer] Fix encoding iterable lists
  [Serializer] Fix serializer crash due to asymmetric visibility on `protected(set)` properties
  [DependencyInjection] Respect original service class when a proxy is defined

Author: nicolas-grekas

Tests/JsonStreamWriterTest.php

@@ -107,7 +107,7 @@ public function testWriteCollection()
         );
 
         $this->assertWritten(
-            '{"0":{"id":1,"name":"dummy"},"1":{"id":1,"name":"dummy"}}',
+            '[{"id":1,"name":"dummy"},{"id":1,"name":"dummy"}]',
             new \ArrayObject([new ClassicDummy(), new ClassicDummy()]),
             Type::iterable(Type::object(ClassicDummy::class), Type::int()),
         );

Write/PhpGenerator.php

@@ -191,7 +191,9 @@ private function generateYields(DataModelNodeInterface $dataModelNode, array $op
         if ($dataModelNode instanceof CollectionNode) {
             ++$context['depth'];
 
-            if ($dataModelNode->getType()->isList()) {
+            $collectionKeyType = $dataModelNode->getType()->getCollectionKeyType();
+
+            if ($collectionKeyType instanceof BuiltinType && TypeIdentifier::INT === $collectionKeyType->getTypeIdentifier()) {
                 $php = $this->yieldInterpolatedString('[', $context)
                     .$this->flushYieldBuffer($context)
                     .$this->line('$prefix'.$context['depth'].' = \'\';', $context)