[master] Fix typecast error thrown for default record field

[HindujaB]

Purpose

$subject

Fixes #43541

Approach

when populating the default values with record type, we need to handle the type-reference type as well.

Samples

Remarks

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 77.56%. Comparing base (2f3cada) to head (8ca5d9c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #43545   +/-   ##
=========================================
  Coverage     77.56%   77.56%           
+ Complexity    58736    58735    -1     
=========================================
  Files          3447     3447           
  Lines        219658   219658           
  Branches      28916    28916           
=========================================
+ Hits         170382   170383    +1     
+ Misses        39886    39883    -3     
- Partials       9390     9392    +2     

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[ravinperera00]

LGTM