bug: array destructured variable is not defined

[alsakhaev]

Array destructuring doesn't work. Test code:

[[1,2,3]].forEach(([a,b,c]) => console.log(a+b+c))

Received

ReferenceError: a is not defined
    at bt (https://unpkg.com/sval:1:102748)
    at Rt (https://unpkg.com/sval:1:113019)
    at Ir (https://unpkg.com/sval:1:147428)
    at https://unpkg.com/sval:1:148063
    at Array.forEach (<anonymous>)
    at CallExpression (https://unpkg.com/sval:1:108397)
    at Ft (https://unpkg.com/sval:1:114182)
    at ExpressionStatement (https://unpkg.com/sval:1:110193)
    at Ft (https://unpkg.com/sval:1:114182)
    at Program (https://unpkg.com/sval:1:114079)

Expected Result

6

[alsakhaev]

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