fix: solving the problem of escaped backslashes in regular expressions.

[JohnhanLiu]

Fix

backslash which in regexp SHOULD NOT be escaped as a string.

Reproduce Sample Code

const regArr = [/hello\w+/];
const reg0 = regArr[0];
debugger;

Incorrect:

Correct

After fixed

[JohnhanLiu]

@connor4312 PTAL :)

[JohnhanLiu]

Hi, @connor4312, sorry to mention again.

Could you take a look and give me a little advice on this PR. In my opinion, it would be great to solve this problem ASAP.

[connor4312]

The test failure is a separate thing I will fix in main. This PR lgtm, thanks for the contribution

[Tyriar]

@connor4312 CI failing?