Merge branch '2.3' into 2.7

* 2.3:
  [Form] NumberToLocalizedStringTransformer should return floats when possible
  [DependencyInjection] Enabled alias for service_container

Conflicts:
	src/Symfony/Component/DependencyInjection/Tests/Compiler/ReplaceAliasByActualDefinitionPassTest.php

Author: nicolas-grekas

src/Symfony/Component/DependencyInjection/Compiler/ReplaceAliasByActualDefinitionPass.php

@@ -42,6 +42,10 @@ public function process(ContainerBuilder $container)
         foreach ($container->getAliases() as $id => $alias) {
             $aliasId = (string) $alias;
 
+            if ('service_container' === $aliasId) {
+                continue;
+            }
+
             try {
                 $definition = $container->getDefinition($aliasId);
             } catch (InvalidArgumentException $e) {

src/Symfony/Component/DependencyInjection/Tests/Compiler/ReplaceAliasByActualDefinitionPassTest.php

@@ -36,6 +36,8 @@ public function testProcess()
         $container->setAlias('a_alias', 'a');
         $container->setAlias('b_alias', 'b');
 
+        $container->setAlias('container', 'service_container');
+
         $this->process($container);
 
         $this->assertTrue($container->has('a'), '->process() does nothing to public definitions.');
@@ -47,6 +49,7 @@ public function testProcess()
         );
 
         $this->assertSame('b_alias', $aDefinition->getFactoryService(false));
+        $this->assertTrue($container->has('container'));
 
         $resolvedFactory = $aDefinition->getFactory(false);
         $this->assertSame('b_alias', (string) $resolvedFactory[0]);

src/Symfony/Component/Form/Extension/Core/DataTransformer/NumberToLocalizedStringTransformer.php

@@ -205,6 +205,10 @@ public function reverseTransform($value)
             throw new TransformationFailedException('I don\'t have a clear idea what infinity looks like');
         }
 
+        if (is_int($result) && $result === (int) $float = (float) $result) {
+            $result = $float;
+        }
+
         if (function_exists('mb_detect_encoding') && false !== $encoding = mb_detect_encoding($value, null, true)) {
             $length = mb_strlen($value, $encoding);
             $remainder = mb_substr($value, $position, $length, $encoding);

src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/NumberToLocalizedStringTransformerTest.php

@@ -642,10 +642,17 @@ public function testReverseTransformDisallowsTrailingExtraCharactersMultibyte()
         $transformer->reverseTransform("12\xc2\xa0345,678foo");
     }
 
-    public function testReverseTransformBigint()
+    public function testReverseTransformBigInt()
     {
         $transformer = new NumberToLocalizedStringTransformer(null, true);
 
         $this->assertEquals(PHP_INT_MAX - 1, (int) $transformer->reverseTransform((string) (PHP_INT_MAX - 1)));
     }
+
+    public function testReverseTransformSmallInt()
+    {
+        $transformer = new NumberToLocalizedStringTransformer(null, true);
+
+        $this->assertSame(1.0, $transformer->reverseTransform('1'));
+    }
 }