[Bug]: Alternate receive worker message passing hangs for nil return

[HindujaB]

Description

$subject

Steps to Reproduce

import ballerina/io;

public function main() {
    boolean foo =  true;
    worker w1 {
        if (foo) {
            () -> w2;
        } else {
            () -> w2;
        }
    }

    worker w2 {
        ()|error v = <- w1| w1;
        io:println(v);
    }
    wait w2;
}

Affected Version(s)

https://github.com/ballerina-platform/ballerina-lang/tree/worker_change

OS, DB, other environment details and versions

No response

Related area

-> Runtime

Related issue(s) (optional)

No response

Suggested label(s) (optional)

No response

Suggested assignee(s) (optional)

No response

[HindujaB]

This is now available in 2201.9.0.

[github-actions]

This issue is NOT closed with a proper Reason/ label. Make sure to add proper reason label before closing. Please add or leave a comment with the proper reason label now.

      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.