Async binding & destructuring issues

After experimenting with Esprima I come across a lot of binding & destructuring issues. Cases that actually should fail, but doesn't.

I used the ASTExplorer to verify this.

Steps to reproduce

 // parenthesized

esprima.parse('async ((x, y, z)) => 0 ')

// nested
esprima.parse('async(async(async(async(async(async())))))')

 // others
esprima.parse('async(a)(s)(y)(n)(c)')
esprima.parse('async (async ()  => a)  => a')
esprima.parse('async(async() () => {})(async() () => {})(y)(n)(c)')
esprima.parse('async().foo13 () => 1')
esprima.parse('async(async() () => {})(async() () => {})(async() () => {})(async() () => {})(async() () => {})')
esprima.parse('async().foo13 () => 1')
esprima.parse('async()(async() => {})')

Expected output

This cases should all throw an syntax error

Actual output

Parses as normal, and doesn't throw any errors

Relevant references

V8, Acorn, Test262 among others

Start by running the listed Esprima.parse reproductions and compare their behavior with V8, Acorn, and Test262, as referenced in the issue. Trace the parser path for async binding and destructuring cases; the work is done when each invalid example consistently throws a syntax error.