Fix support for breakpoint changes inside Ballerina services during a debug session

[NipunaRanasinghe]

Purpose

$subject.

Fixes #43738

Remarks

Its not possible to cover this scenario using integration tests implemented in the lang repo, as we cant use/access stdlibs (hence services) in lang tests. Related tests will be added to the tooling integration test suite in the ballerina-distribution repository.

Check List

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • 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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.41%. Comparing base (d8a9cfa) to head (94bd439).
Report is 13 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #43739      +/-   ##
============================================
- Coverage     77.42%   77.41%   -0.01%     
- Complexity    58622    58623       +1     
============================================
  Files          3445     3445              
  Lines        219172   219200      +28     
  Branches      28968    28972       +4     
============================================
+ Hits         169690   169697       +7     
- Misses        40052    40067      +15     
- Partials       9430     9436       +6     

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