es5 will generate illegal js code

[jerrykingxyz]

Describe the bug

swc generates illegal js code when i use input code

Input code

async function a(fn) {
    (await fn()).a = "123";
}

Config

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": false
    },
    "target": "es5",
    "loose": false,
    "minify": {
      "compress": false,
      "mangle": false
    }
  },
  "module": {
    "type": "commonjs"
  },
  "minify": false,
  "isModule": true
}

Playground link

https://play.swc.rs/?version=1.3.76&code=H4sIAAAAAAAAA0ssrsxLVkgrzUsuyczPU0jUSMvTVKjmUgACjcTyxMwShbQ8DU1NvUQFWwVDa65aANML9EIwAAAA&config=H4sIAAAAAAAAA1WPSw7DIAxE95wCed1tN71DD2FRJwLxEyZSUZS7Fyikzc4z8%2ByRdyElGFbwkHsdq4iYmNKpq8PFZ3xXB0g5ZJV0zHCbqeEWLWiZunV8E8iYVsp9i%2B8DBxsC08SH57TXS%2FkvVMHFRMxXsKHoV0vXOjEqwYXX1sPxSC6xqXbNBW8YfuRsPK%2BD5udcz2kjcXwAmJf30BkBAAA%3D

Expected behavior

correctly transpile await in left hand side of assignment expressions

Actual behavior

function a(fn) {
    return _a.apply(this, arguments);
}
function _a() {
    _a = _async_to_generator(function(fn) {
        return _ts_generator(this, function(_state) {
            (yield fn()).a = 1; // cannot use yield in ordinary functions
            return [
                2
            ];
        });
    });
    return _a.apply(this, arguments);
}

Version

1.3.76

Additional context

No response

[swc-bot]

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