minor #7870 Property access (iulyanp)

This PR was squashed before being merged into the master branch (closes #7870).

Discussion
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Property access

Hello,

I changed the visibility of the `$children` property and use the `getLastName` method in order for the example to work correctly.

Commits
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4301f63 Property access

Author: javiereguiluz

components/property_access.rst

@@ -252,23 +252,31 @@ can use setters, the magic ``__set()`` method or properties to set values::
             $this->lastName = $name;
         }
 
+        public function getLastName()
+        {
+            return $this->lastName;
+        }
+
+        public function getChildren()
+        {
+            return $this->children;
+        }
+
         public function __set($property, $value)
         {
             $this->$property = $value;
         }
-
-        // ...
     }
 
     $person = new Person();
 
     $accessor->setValue($person, 'firstName', 'Wouter');
-    $accessor->setValue($person, 'lastName', 'de Jong');
-    $accessor->setValue($person, 'children', array(new Person()));
+    $accessor->setValue($person, 'lastName', 'de Jong'); // setLastName is called
+    $accessor->setValue($person, 'children', array(new Person())); // __set is called
 
     var_dump($person->firstName); // 'Wouter'
     var_dump($person->getLastName()); // 'de Jong'
-    var_dump($person->children); // array(Person());
+    var_dump($person->getChildren()); // array(Person());
 
 You can also use ``__call()`` to set values but you need to enable the feature,
 see `Enable other Features`_.

service_container/service_decoration.rst

@@ -232,6 +232,6 @@ order by configuring the priority of decoration, this can be any integer number
 
 The generated code will be the following::
 
-    $this->services['foo'] = new Baz(new Bar(new Foo())));
+    $this->services['foo'] = new Baz(new Bar(new Foo()));
 
 .. _decorator pattern: https://en.wikipedia.org/wiki/Decorator_pattern