insert a comment block in an arithmetic expression, compiler error occurred. ( 演算式の中にコメントブロックを挿入するとコンパイラエラーになる )

Steps to reproduce:
1.input this code.
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/halo" minWidth="1024" minHeight="768">
<fx:Script>
<![CDATA[
protected override function createChildren() : void

{ super.createChildren(); var x_:Number; x_ = 100 /* hoge */ + 2; //OK x_ = 100 /* hoge */ - 2; //OK x_ = 100 /* hoge */ / 2; //NG x_ = 100 /* hoge */ * 2; //NG }

]]
>
</fx:Script>
</s:Application>

Actual Results:
Compiler error occur.

Expected Results:
Compiler error doesn't occur.

Workaround (if any):
none.
Incidentally, Flex SDK 3 is doesn't occur.