Issue #10117 has been reported by Nobuyoshi Nakada.

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Bug #10117: Invalid char does not cause syntax error in eval
https://bugs.ruby-lang.org/issues/10117

* Author: Nobuyoshi Nakada
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
* Category: syntax
* Target version: 
* ruby -v: trunk
* Backport: 2.0.0: REQUIRED, 2.1: REQUIRED
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無効な文字を直接書いたときには`SyntaxError`になりますが、`eval`の中ではなりません。

~~~
$ ruby -e $'\x01'
-e:1: Invalid char `\x01' in expression
bash: exit 1
~~~

~~~
$ ruby -e 'p eval("\x01")'
nil
bash: exit 1
~~~




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