Add missing return statements on the app folder

Author: lucwollants

app/Console/Command/AbstractCsvImportCommand.php

@@ -36,11 +36,9 @@ public function configure(): void
     abstract public function getColumnHeaders(): string;
 
     /**
-     * @inheritdoc
      * @throws \League\Csv\Exception
-     * @see Command::execute()
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $csvReader = Reader::createFromPath(
             $input->getArgument(self::CSV_FILE_ARG)

app/Console/Command/EventAncestorsCommand.php

@@ -35,7 +35,7 @@ public function configure(): void
             );
     }
 
-    public function execute(InputInterface $input, OutputInterface $output)
+    public function execute(InputInterface $input, OutputInterface $output): int
     {
         $cdbid = $input->getArgument('cdbid');
 

app/Console/Command/FireProjectedToJSONLDCommand.php

@@ -29,7 +29,7 @@ protected function configure(): void
             );
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->inReplayMode(
             function (

app/Console/Command/FireProjectedToJSONLDForRelationsCommand.php

@@ -28,7 +28,7 @@ protected function configure(): void
             ->setDescription('Fires JSONLD projected events for organizers and places having relations');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $connection = $this->connection;
 

app/Migrations/Version20180108080352.php

@@ -5,6 +5,7 @@
 namespace CultuurNet\UDB3\Migrations;
 
 use Doctrine\DBAL\Schema\Schema;
+use Doctrine\DBAL\Schema\Table;
 use Doctrine\Migrations\AbstractMigration;
 
 class Version20180108080352 extends AbstractMigration
@@ -28,10 +29,9 @@ public function down(Schema $schema): void
     }
 
     /**
-     * @return \Doctrine\DBAL\Schema\Table
      * @throws \Doctrine\DBAL\Schema\SchemaException
      */
-    private function getLabelsRelationsTable(Schema $schema)
+    private function getLabelsRelationsTable(Schema $schema): Table
     {
         return $schema->getTable('labels_relations');
     }