Empty if/else body causes "internal error in Neon module: called Option::unwrap() on a None value"

[Black-Platypus]

Examples like this cause the minification to fail:

function a(b=""){
	if(b=="c"){
		// return "d"; // <-- temporarily disabled
	}
	return "f";
}

thread '<unnamed>' panicked at rust\src\minify\advanced_if.rs:188:8:
called Option::unwrap() on a None value

Empty bodies could be avoided in theory, of course, but they will happen in practice.