[Debug] fix #10313: FlattenException not found because of https://bugs.php.net/42098

ErrorHandler.php

@@ -125,6 +125,13 @@ class ErrorHandler
             if (!class_exists('Symfony\Component\Debug\Exception\ContextErrorException')) {
                 require __DIR__.'/Exception/ContextErrorException.php';
             }
+            if (!class_exists('Symfony\Component\Debug\Exception\FlattenException')) {
+                require __DIR__.'/Exception/FlattenException.php';
+            }
+
+            if (PHP_VERSION_ID < 50400 && isset($context['GLOBALS']) && is_array($context)) {
+                unset($context['GLOBALS']);
+            }
 
             $exception = new ContextErrorException(sprintf('%s: %s in %s line %d', isset($this->levels[$level]) ? $this->levels[$level] : $level, $message, $file, $line), 0, $level, $file, $line, $context);
 

Tests/ErrorHandlerTest.php

@@ -165,18 +165,18 @@ PHP
     public function testHandle()
     {
         $handler = ErrorHandler::register(0);
-        $this->assertFalse($handler->handle(0, 'foo', 'foo.php', 12, 'foo'));
+        $this->assertFalse($handler->handle(0, 'foo', 'foo.php', 12, array()));
 
         restore_error_handler();
 
         $handler = ErrorHandler::register(3);
-        $this->assertFalse($handler->handle(4, 'foo', 'foo.php', 12, 'foo'));
+        $this->assertFalse($handler->handle(4, 'foo', 'foo.php', 12, array()));
 
         restore_error_handler();
 
         $handler = ErrorHandler::register(3);
         try {
-            $handler->handle(111, 'foo', 'foo.php', 12, 'foo');
+            $handler->handle(111, 'foo', 'foo.php', 12, array());
         } catch (\ErrorException $e) {
             $this->assertSame('111: foo in foo.php line 12', $e->getMessage());
             $this->assertSame(111, $e->getSeverity());
@@ -187,12 +187,12 @@ PHP
         restore_error_handler();
 
         $handler = ErrorHandler::register(E_USER_DEPRECATED);
-        $this->assertTrue($handler->handle(E_USER_DEPRECATED, 'foo', 'foo.php', 12, 'foo'));
+        $this->assertTrue($handler->handle(E_USER_DEPRECATED, 'foo', 'foo.php', 12, array()));
 
         restore_error_handler();
 
         $handler = ErrorHandler::register(E_DEPRECATED);
-        $this->assertTrue($handler->handle(E_DEPRECATED, 'foo', 'foo.php', 12, 'foo'));
+        $this->assertTrue($handler->handle(E_DEPRECATED, 'foo', 'foo.php', 12, array()));
 
         restore_error_handler();
 
@@ -215,7 +215,7 @@ PHP
 
         $handler = ErrorHandler::register(E_USER_DEPRECATED);
         $handler->setLogger($logger);
-        $handler->handle(E_USER_DEPRECATED, 'foo', 'foo.php', 12, 'foo');
+        $handler->handle(E_USER_DEPRECATED, 'foo', 'foo.php', 12, array());
 
         restore_error_handler();
     }