[Debug] made order of suggestions predictable in error messages

src/Symfony/Component/Debug/FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php

@@ -80,6 +80,7 @@ class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface
         }
 
         if ($candidates) {
+            sort($candidates);
             $message .= ' Did you mean to call: '.implode(', ', array_map(function ($val) {
                 return '"'.$val.'"';
             }, $candidates)).'?';

src/Symfony/Component/Debug/FatalErrorHandler/UndefinedMethodFatalErrorHandler.php

@@ -45,6 +45,7 @@ class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
         }
 
         if ($candidates) {
+            sort($candidates);
             $message .= sprintf(' Did you mean to call: "%s"?', implode('", "', $candidates));
         }
 

src/Symfony/Component/Debug/Tests/FatalErrorHandler/UndefinedMethodFatalErrorHandlerTest.php

@@ -59,7 +59,7 @@ class UndefinedMethodFatalErrorHandlerTest extends \PHPUnit_Framework_TestCase
                     'file' => 'foo.php',
                     'message' => 'Call to undefined method SplObjectStorage::offsetFet()',
                 ),
-                'Attempted to call method "offsetFet" on class "SplObjectStorage" in foo.php line 12. Did you mean to call: "offsetSet", "offsetUnset", "offsetGet"?',
+                'Attempted to call method "offsetFet" on class "SplObjectStorage" in foo.php line 12. Did you mean to call: "offsetGet", "offsetSet", "offsetUnset"?',
             ),
         );
     }