[2201.9.x] Fix worker send hangs when worker early return within if stmt

[gabilang]

Purpose

$title

Fixes #42555

Approach

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Samples

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Remarks

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Check List

• [x] Read the Contributing Guide
• [ ] Updated Change Log
• [ ] Checked Tooling Support (#<Issue Number>)
• [ ] Added necessary tests
  • [x] Unit Tests
  • [ ] Spec Conformance Tests
  • [ ] Integration Tests
  • [ ] Ballerina By Example Tests
• [ ] Increased Test Coverage
• [ ] Added necessary documentation
  • [ ] API documentation
  • [ ] Module documentation in Module.md files
  • [ ] Ballerina By Examples

[gabilang]

This PR addresses the case 1 mentioned in the original problem.

import ballerina/io;
import ballerina/lang.'error as e;

public function main() {
    io:println("main called");
    worker w1 {
        io:println("w1");
        boolean b = true;
        if (b) {
            return;
        } else {
            30 -> w2;
        }
    }
    worker w2 {
        io:println("w2");
        int|e:NoMessage m = <- w1;
        io:println(m);
    }
    wait w2;
}

[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.85%. Comparing base (8e138bc) to head (da72485). Report is 235 commits behind head on 2201.9.x.

Additional details and impacted files

@@              Coverage Diff               @@
##             2201.9.x   #42565      +/-   ##
==============================================
+ Coverage       76.79%   76.85%   +0.06%     
- Complexity      53975    54049      +74     
==============================================
  Files            2924     2925       +1     
  Lines          203960   204145     +185     
  Branches        26600    26633      +33     
==============================================
+ Hits           156638   156905     +267     
+ Misses          38780    38682      -98     
- Partials         8542     8558      +16     

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[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.

[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.