[PropertyInfo] Respect property name case when guessing from public method name

src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php

@@ -103,8 +103,8 @@ class ReflectionExtractor implements PropertyListExtractorInterface, PropertyTyp
             if (!$propertyName || isset($properties[$propertyName])) {
                 continue;
             }
-            if (!$reflectionClass->hasProperty($propertyName) && !preg_match('/^[A-Z]{2,}/', $propertyName)) {
+            if ($reflectionClass->hasProperty($lowerCasedPropertyName = lcfirst($propertyName)) || (!$reflectionClass->hasProperty($propertyName) && !preg_match('/^[A-Z]{2,}/', $propertyName))) {
-                $propertyName = lcfirst($propertyName);
+                $propertyName = $lowerCasedPropertyName;
             }
             $properties[$propertyName] = $propertyName;
         }

src/Symfony/Component/PropertyInfo/Tests/Extractor/ReflectionExtractorTest.php

@@ -59,6 +59,8 @@ class ReflectionExtractorTest extends TestCase
                 '123',
                 'self',
                 'realParent',
+                'xTotals',
+                'YT',
                 'c',
                 'd',
                 'e',

src/Symfony/Component/PropertyInfo/Tests/Fixtures/Dummy.php

@@ -93,6 +93,16 @@ class Dummy extends ParentDummy
      */
     public $j;
 
+    /**
+     * @var array
+     */
+    private $xTotals;
+
+    /**
+     * @var string
+     */
+    private $YT;
+
     /**
      * This should not be removed.
      *
@@ -166,4 +176,18 @@ class Dummy extends ParentDummy
     public function setRealParent(parent $realParent)
     {
     }
+
+    /**
+     * @return array
+     */
+    public function getXTotals()
+    {
+    }
+
+    /**
+     * @return string
+     */
+    public function getYT()
+    {
+    }
 }