feature #1499 [make:*] add docBlock return types for non-internal makers

Author: jrushlow

src/Maker/MakeFixtures.php

@@ -39,6 +39,7 @@ public static function getCommandDescription(): string
         return 'Create a new class to load Doctrine fixtures';
     }
 
+    /** @return void */
     public function configureCommand(Command $command, InputConfiguration $inputConf)
     {
         $command
@@ -47,6 +48,7 @@ public function configureCommand(Command $command, InputConfiguration $inputConf
         ;
     }
 
+    /** @return void */
     public function generate(InputInterface $input, ConsoleStyle $io, Generator $generator)
     {
         $fixturesClassNameDetails = $generator->createClassNameDetails(
@@ -78,6 +80,7 @@ public function generate(InputInterface $input, ConsoleStyle $io, Generator $gen
         ]);
     }
 
+    /** @return void */
     public function configureDependencies(DependencyBuilder $dependencies)
     {
         $dependencies->addClassDependency(

src/Maker/MakeMigration.php

@@ -77,6 +77,7 @@ public function configureCommand(Command $command, InputConfiguration $inputConf
         ;
     }
 
+    /** @return void */
     public function generate(InputInterface $input, ConsoleStyle $io, Generator $generator)
     {
         $options = ['doctrine:migrations:diff'];
@@ -145,7 +146,7 @@ public function generate(InputInterface $input, ConsoleStyle $io, Generator $gen
         ]);
     }
 
-    private function noChangesMessage(ConsoleStyle $io)
+    private function noChangesMessage(ConsoleStyle $io): void
     {
         $io->warning([
             'No database changes were detected.',
@@ -156,6 +157,7 @@ private function noChangesMessage(ConsoleStyle $io)
         ]);
     }
 
+    /** @return void */
     public function configureDependencies(DependencyBuilder $dependencies)
     {
         $dependencies->addClassDependency(

src/Maker/MakeValidator.php

@@ -37,6 +37,7 @@ public static function getCommandDescription(): string
         return 'Create a new validator and constraint class';
     }
 
+    /** @return void */
     public function configureCommand(Command $command, InputConfiguration $inputConf)
     {
         $command
@@ -45,6 +46,7 @@ public function configureCommand(Command $command, InputConfiguration $inputConf
         ;
     }
 
+    /** @return void */
     public function generate(InputInterface $input, ConsoleStyle $io, Generator $generator)
     {
         $validatorClassNameDetails = $generator->createClassNameDetails(
@@ -79,6 +81,7 @@ public function generate(InputInterface $input, ConsoleStyle $io, Generator $gen
         ]);
     }
 
+    /** @return void */
     public function configureDependencies(DependencyBuilder $dependencies)
     {
         $dependencies->addClassDependency(