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

Start by reproducing the difference between the variable declaration and function declaration examples at the linked Khan Academy program. Trace how each JavaScript form is transformed and verify that the function declaration receives KAInfiniteLoopProtect without changing the expected output.

Written by the indexing model from the issue text.