Merge branch 'xdebug_3_5'

* xdebug_3_5:
  Fixed issue #2426: xdebug_get_tracefile_name incorrectly throws notice

Author: derickr

src/tracing/tracing.c

@@ -206,8 +206,6 @@ PHP_FUNCTION(xdebug_get_tracefile_name)
 {
 	char *filename;
 
-	WARN_AND_RETURN_IF_MODE_IS_NOT(XDEBUG_MODE_TRACING);
-
 	filename = xdebug_get_trace_filename();
 	if (!filename) {
 		RETURN_FALSE;

tests/tracing/bug02426.phpt

@@ -0,0 +1,14 @@
+--TEST--
+Test for bug #2426: xdebug_get_tracefile_name incorrectly throws notice
+--INI--
+xdebug.mode=develop
+html_errors=0
+--FILE--
+<?php
+$tf = xdebug_get_tracefile_name();
+
+var_dump($tf);
+?>
+--EXPECTF--
+%sbug02426.php:%d:
+bool(false)