Error when minimizing with Google closure-compiler

[Light-Wizzard]

https://github.com/google/closure-compiler
he.js: line 338, col 60, Expected an assignment or function call and instead saw an expression.
has(he, key) && (freeExports[key] = he[key]);

My guess would be something like this:

if (has(he, key)) {
freeExports[key] = he[key];
}

[reno1979]

same here, not accepted by google closure compiler, it complains about the undefined variable exports