Error with destructuring array within if condition with no braces

[brettz9]

Getting an "Unexpected token" error with code such as the following:

export function replaceRange(from, to) {
  if (from) [from, to] = [to, from]

}

The error doesn't occur if braces are present.

[marijnh]

Specifically, the generated code looks like this:

export function replaceRange(from, to) {
  var assign;

  if (from) { (assign = [to, from], from = assign[0], to = assign[1] })

}

Which has mismatched brackets (the paren after the destructuring expression ended up before the brace)

[marijnh]

See PR #153

[adrianheine]

Fixed with 8117b69.