Remove deprecated phpunit code

Author: iMattPro

tests/controller/add_prefix_test.php

@@ -53,7 +53,7 @@ public function test_add_prefix($prefix, $submit, $valid_form)
 
 			if (!$valid_form)
 			{
-				$this->expectException(\PHPUnit\Framework\Error\Warning::class);
+				$this->expectException(\PHPUnit\Framework\Exception::class);
 			}
 			else
 			{

tests/controller/delete_prefix_test.php

@@ -63,7 +63,7 @@ public function test_delete_prefix($prefix_id, $confirm)
 				->will(self::throwException(new \OutOfBoundsException()));
 			$this->log->expects(self::never())
 				->method('add');
-			$this->expectException(\PHPUnit\Framework\Error\Warning::class);
+			$this->expectException(\PHPUnit\Framework\Exception::class);
 		}
 		else
 		{
@@ -79,7 +79,7 @@ public function test_delete_prefix($prefix_id, $confirm)
 			$this->db->expects(static::once())
 				->method('sql_fetchrow')
 				->willReturn(['forum_name' => 'Test Forum']);
-			$this->expectException(\PHPUnit\Framework\Error\Notice::class);
+			$this->expectException(\PHPUnit\Framework\Exception::class);
 		}
 
 		$this->controller->delete_prefix($prefix_id);

tests/controller/edit_prefix_test.php

@@ -55,7 +55,7 @@ public function test_edit_prefix($prefix_id, $valid_form, $is_ajax)
 				->method('get_prefix');
 			$this->manager->expects(self::never())
 				->method('update_prefix');
-			$this->expectException(\PHPUnit\Framework\Error\Warning::class);
+			$this->expectException(\PHPUnit\Framework\Exception::class);
 		}
 		else if ($prefix_id === 0)
 		{
@@ -66,7 +66,7 @@ public function test_edit_prefix($prefix_id, $valid_form, $is_ajax)
 			$this->manager->expects(self::once())
 				->method('update_prefix')
 				->will(self::throwException(new \OutOfBoundsException));
-			$this->expectException(\PHPUnit\Framework\Error\Warning::class);
+			$this->expectException(\PHPUnit\Framework\Exception::class);
 		}
 		else
 		{

tests/controller/move_prefix_test.php

@@ -58,13 +58,13 @@ public function test_move_prefix($prefix_id, $direction, $valid_form, $is_ajax)
 		if (!$valid_form)
 		{
 			$prefix_id = 0;
-			$this->expectException(\PHPUnit\Framework\Error\Warning::class);
+			$this->expectException(\PHPUnit\Framework\Exception::class);
 			$this->manager->expects(static::never())
 				->method('move_prefix');
 		}
 		else if ($prefix_id === 0)
 		{
-			$this->expectException(\PHPUnit\Framework\Error\Warning::class);
+			$this->expectException(\PHPUnit\Framework\Exception::class);
 			$this->manager->expects(static::once())
 				->method('move_prefix')
 				->with(static::equalTo(0), static::stringContains($direction))