// input.js
[ + 0 , ] [ 0 ] = 0 ;
// Note: this is fine
// [ 0 , ] [ 0 ] = 0 ;
_____________________

Hello,

Executing the input.js using JSC throws SyntaxError, but it is expected to be terminated normally.

Running the input.js with JSC gives

---
$ jsc input.js
Exception: SyntaxError: Left hand side of operator '=' must be a reference.
at input.js:1
---

while other engines behave like

---
# V8
$ node input.js
// no error

# GraalJS
$ js input.js
// no error
---


WebKit version: 615.1.10