Add an API to type ref symbol to get the associated definition symbol

[pubudu91]

Purpose

This PR adds a new method to TypeReferenceTypeSymbol to get the definition symbol the type ref is referring to.

Fix #29287
Fix #27804

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

Merging #29626 (4e27498) into master (162adbc) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master   #29626   +/-   ##
=========================================
  Coverage     67.48%   67.48%           
- Complexity    34870    34876    +6     
=========================================
  Files          2808     2808           
  Lines        152233   152238    +5     
  Branches      18485    18485           
=========================================
+ Hits         102731   102737    +6     
- Misses        43370    43373    +3     
+ Partials       6132     6128    -4     

Impacted Files	Coverage Δ	Complexity Δ
...impl/symbols/BallerinaTypeReferenceTypeSymbol.java	69.38% <100.00%> (+3.47%)	16.00 <2.00> (+2.00)
...java/io/ballerina/runtime/internal/BLockStore.java	71.42% <0.00%> (-14.29%)	6.00% <0.00%> (-1.00%)
...runtime/internal/scheduling/WorkerDataChannel.java	84.71% <0.00%> (-3.19%)	34.00% <0.00%> (ø%)
.../ballerina/runtime/internal/scheduling/Strand.java	78.33% <0.00%> (-1.12%)	43.00% <0.00%> (-1.00%)
.../compiler/bir/codegen/interop/JMethodResolver.java	78.04% <0.00%> (+0.27%)	184.00% <0.00%> (+1.00%)
...lerinalang/langserver/common/utils/CommonUtil.java	71.96% <0.00%> (+0.46%)	123.00% <0.00%> (+1.00%)
...viders/context/ListenerDeclarationNodeContext.java	74.63% <0.00%> (+0.72%)	36.00% <0.00%> (+1.00%)
...lerinalang/diagramutil/SyntaxTreeMapGenerator.java	63.13% <0.00%> (+0.92%)	41.00% <0.00%> (+1.00%)
...ang/compiler/semantics/model/types/BUnionType.java	71.66% <0.00%> (+1.11%)	63.00% <0.00%> (+1.00%)
...n/java/io/ballerina/projects/bala/BalaProject.java	76.47% <0.00%> (+11.76%)	5.00% <0.00%> (+1.00%)

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