es/minifier: assignmentexpr can be lowered to just binary expression when inlining with no further accesses

[Le0Developer]

Describe the feature

window.test = function (foo) {
    foo -= 1023;
    return Math.pow(2, foo);
}

compiles to

window.test=function(t){return Math.pow(2,t-=1023)};

the t-=1023 can be lowered to t-1023 here, since there are no other accesses.
This could be unsafe if there are closures, but that should be possible to guarantee statically.

Babel plugin or link to the feature description

No response

Additional context

Playground

[Austaras]

It's definitely possible but I doubt if anyone really write code like this.