When a prefix is used when import jsondata expected type validation compiler analysis won't work

[LakshanWeerasinghe]

Description:
$subject

Steps to reproduce:

import ballerina/data.jsondata as jd;
import ballerina/io;

type Union xml|json;

public function main() returns error? {
    string content = string `{"name": "John"}`;
    Union value = check jd:parseString(content);
    io:println(value);
}

Affected Versions:

OS, DB, other environment details and versions:

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