Incorrect "Parenthesized pattern" error in 4.0.5

[loganfsmyth]

require('acorn').parse('(foo = [])[0] = 4;')

reproduces. Note that it is ES5-only and contains no patterns.

Originally reported in zloirock/core-js#277

[puzrin]

https://github.com/nodeca/nodeca.users/blob/master/lib/identicon.js#L39-L49

4.0.7 still has this error with this code. I know it's ugly, but it works and 4.0.4 was ok. Reopen please.

[puzrin]

https://github.com/jbt/js-crypto/blob/master/sha1.js better link to test 4.0.7 in es5 mode for "Parenthesized pattern" bug.

[loganfsmyth]

A trimmed down example would appear to be

[
  (G = s),
  F = G,
]

require('acorn').parse(`[ (G = s), F = G ]`)

throws on 4.0.7

[marijnh]

Patch 9634756 and release 4.0.8 should hide this problem. Opened #503 to track a real solution.

[puzrin]

I confirm, no problems with 4.0.8. Thanks a lot!