Allow BindingPattern as CatchParameter

[raskad]

ECMASCript feature
Currently we only allow BindingIdentifiers in the CatchParameter of the try...catch statement. BindingPatterns should be also allowed.

ECMAScript specification

Example code
This code should work and give the expected result:

try {
  throw { a: 1, b: 2 }
} catch ({ a, b }) {
  console.log(a, b)
}
// prints `1 2`

Good starting points would be the catch parsing in https://github.com/boa-dev/boa/blob/master/boa/src/syntax/parser/statement/try_stm/catch.rs and the BindingPattern parsing in https://github.com/boa-dev/boa/blob/master/boa/src/syntax/parser/statement/mod.rs

[am-a-man]

hey,
I'd like to work on this, please assign this to me.

[lowr]

Hi, I saw comments at #1601, and looks like this issue hasn't been taken yet. I'd like to give it a shot!

[jedel1043]

@lowr Please do! I've assigned it to you, let us know if you have any questions or if you need any pointers to get started 😊