1100441 - "yield expression needs to be parenthesized" should not occur for yield statements in a sequence

Status: RESOLVED DUPLICATE of bug 1250589

(Core :: JavaScript Engine, defect)

Description

[kevinb7]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.62 Safari/537.36

Steps to reproduce:

I tried running the following javascript code:
function* add(x,y) { return x + y; }
console.log(yield { gen: add(yield { gen: add(1, 2) }, yield { gen: add(3, 4) }) })


Actual results:

I get an error in the console that says: "yield expression must be parenthesized"


Expected results:

No error.  Sequences are supposed to have higher precedence so the given expression should parse without error.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence#Table