Fix building of callgraph including preloaded symbols

This issue was introduced in GH-15021. When building the call graph, we can now
see preloaded functions. However, building the call graph involves adding the
function to the caller list of the callee, which we don't want to do for
functions not coming from the script.

Fixes GH-15490

Author: iluuu1994

Zend/Optimizer/zend_call_graph.c

@@ -79,7 +79,8 @@ ZEND_API void zend_analyze_calls(zend_arena **arena, zend_script *script, uint32
 
 					if (build_flags & ZEND_CALL_TREE) {
 						call_info->next_caller = NULL;
-					} else if (func->type == ZEND_INTERNAL_FUNCTION) {
+					} else if (func->type == ZEND_INTERNAL_FUNCTION
+					 || func->op_array.filename != script->filename) {
 						call_info->next_caller = NULL;
 					} else {
 						zend_func_info *callee_func_info = ZEND_FUNC_INFO(&func->op_array);

ext/opcache/tests/jit/gh15490.inc

@@ -0,0 +1,9 @@
+<?php
+
+function foo() {
+    bar();
+}
+
+function bar() {
+    echo 'Hello world!';
+}

ext/opcache/tests/jit/gh15490.phpt

@@ -0,0 +1,20 @@
+--TEST--
+GH-15490: use-after-free when traversing call graph
+--EXTENSIONS--
+opcache
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.file_update_protection=0
+opcache.preload={PWD}/gh15490.inc
+opcache.jit=1235
+--SKIPIF--
+<?php
+if (PHP_OS_FAMILY == 'Windows') die('skip Preloading is not supported on Windows');
+?>
+--FILE--
+<?php
+foo();
+?>
+--EXPECT--
+Hello world!