[master] Fix file too large due to many record default functions

[warunalakshitha]

Purpose

Fixes #42655

Approach

This PR will improve the generated to code as below to avoid file too large and method too large issues due to high record default functions.

1. Move generated record field default functions to generated to functions/$generated$ class
2. Move split methods to "functions/$generated$" class
3. Move lambda methods from init class to "lambdas/$generated$" class
4. Split "lambdas/$generated$" and "functions/$generated$" classes to separate classed depend on functions count
5. use functions.call() method to execute record default functions in imported modules

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

Attention: Patch coverage is 97.84946% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 77.27%. Comparing base (f22f3e8) to head (f5b9151).
Report is 22 commits behind head on master.

Files	Patch %	Lines
...lang/compiler/bir/codegen/methodgen/LambdaGen.java	96.80%	3 Missing ⚠️
...erinalang/compiler/bir/codegen/JvmCodeGenUtil.java	71.42%	1 Missing and 1 partial ⚠️
...nalang/compiler/bir/codegen/JvmInstructionGen.java	80.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #42671   +/-   ##
=========================================
  Coverage     77.26%   77.27%           
- Complexity    51301    51315   +14     
=========================================
  Files          2928     2932    +4     
  Lines        204391   204470   +79     
  Branches      26659    26677   +18     
=========================================
+ Hits         157925   158001   +76     
+ Misses        37885    37882    -3     
- Partials       8581     8587    +6     

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[HindujaB]

Suggested change

	if (!isSamePkg) {
	mv.visitLdcInsn(lambdaDetails.encodedFuncName);
	}
	if (!isSamePkg) {
	mv.visitLdcInsn(lambdaDetails.encodedFuncName);
	}