[Console] Fix completion for global options values

Author: HypeMC

Application.php

@@ -403,6 +403,15 @@ public function complete(CompletionInput $input, CompletionSuggestions $suggesti
 
             return;
         }
+
+        if (
+            CompletionInput::TYPE_OPTION_VALUE === $input->getCompletionType()
+            && ($definition = $this->getDefinition())->hasOption($input->getCompletionName())
+        ) {
+            $definition->getOption($input->getCompletionName())->complete($input, $suggestions);
+
+            return;
+        }
     }
 
     /**

Tests/Command/CompleteCommandTest.php

@@ -19,6 +19,7 @@
 use Symfony\Component\Console\Completion\CompletionSuggestions;
 use Symfony\Component\Console\Completion\Output\BashCompletionOutput;
 use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Tester\CommandTester;
 
@@ -34,6 +35,8 @@ protected function setUp(): void
 
         $this->application = new Application();
         $this->application->add(new CompleteCommandTest_HelloCommand());
+        $this->application->getDefinition()
+            ->addOption(new InputOption('global-option', null, InputOption::VALUE_REQUIRED, suggestedValues: ['foo', 'bar', 'baz']));
 
         $this->command->setApplication($this->application);
         $this->tester = new CommandTester($this->command);
@@ -119,10 +122,12 @@ public function testCompleteCommandInputDefinition(array $input, array $suggesti
 
     public static function provideCompleteCommandInputDefinitionInputs()
     {
-        yield 'definition' => [['bin/console', 'hello', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-ansi', '--no-interaction']];
+        yield 'definition' => [['bin/console', 'hello', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-ansi', '--no-interaction', '--global-option']];
         yield 'custom' => [['bin/console', 'hello'], ['Fabien', 'Robin', 'Wouter']];
-        yield 'definition-aliased' => [['bin/console', 'ahoy', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-ansi', '--no-interaction']];
+        yield 'definition-aliased' => [['bin/console', 'ahoy', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-ansi', '--no-interaction', '--global-option']];
         yield 'custom-aliased' => [['bin/console', 'ahoy'], ['Fabien', 'Robin', 'Wouter']];
+        yield 'global-option-values' => [['bin/console', '--global-option'], ['foo', 'bar', 'baz']];
+        yield 'global-option-with-command-values' => [['bin/console', 'ahoy', '--global-option'], ['foo', 'bar', 'baz']];
     }
 
     private function execute(array $input)
@@ -147,6 +152,10 @@ public function complete(CompletionInput $input, CompletionSuggestions $suggesti
     {
         if ($input->mustSuggestArgumentValuesFor('name')) {
             $suggestions->suggestValues(['Fabien', 'Robin', 'Wouter']);
+
+            return;
         }
+
+        parent::complete($input, $suggestions);
     }
 }