[Bug]: Using ` re \u{0028} ` causes runtime exception.

[gayaldassanayake]

Description

string:RegExp regBracketSplitter = re `\u{0028}`;
string[] descriptionParts = regBracketSplitter.split(description);

causes the below runtime error.

error: java.util.regex.PatternSyntaxException {"message":"Unclosed group near index 1
("}
        at ballerina.lang.regexp.0:split(regexp.bal:437)
           gayaldassanayake.dulaj.0:getCleanInvoiceItemDescription(main.bal:15)
           gayaldassanayake.dulaj.0:main(main.bal:10)

Steps to Reproduce

Do a bal run on the above sample code

Affected Version(s)

2201.10.x

OS, DB, other environment details and versions

No response

Related area

-> Compilation

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