function declarations get converted to variable assignment without infinite loop safety

variable declaration expressions such as:
```js
var test1 = function ( a, b ) {
    return a + b;
};
```
result in the expected output with `KAInfiniteLoopProtect`

while function declarations such as
```js
function test2 ( a, b ) {
    return a + b;
}
```
do not

repro here:
https://www.khanacademy.org/computer-programming/func-decl-vdecl-without-loop-safety/5771192026742784