1--TEST--
2Type inference 008: ASSIGN_DIM with invalid op1
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.optimization_level=-1
7--FILE--
8<?php
9function y() {
10    $j = 0;
11    for(;;) {
12        $cs = $a + $a;
13        $a = [] ?? $cs[] = $j;
14    }
15}
16?>
17DONE
18--EXPECT--
19DONE
20