ballerina-lang Fix invalid subtyping relationship in xml

Purpose

Fixes #34779

Approach

Update isAssignable to not to allow assigning of value with static typexml to value with static type xml:Comment|xml:Element|xml:ProcessingInstruction|xml:Text. But this assignment is allowed in the type binding pattern in theforeach loops. Thus in order to handle this case new function is introduced constituentTypesAssignable.

Samples

Provide high-level details about the samples related to this feature.

Remarks

List any other known issues, related PRs, TODO items, or any other notes related to the PR.

Check List

[ ] Read the Contributing Guide
[ ] Updated Change Log
[ ] Checked Tooling Support (#<Issue Number>)
[ ] 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

Feb 26 '24 05:02 poorna2152

Codecov Report

Attention: Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.35%. Comparing base (6399eae) to head (310444d). Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...llerinalang/compiler/semantics/analyzer/Types.java	88.88%	0 Missing and 1 partial :warning:

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #42221      +/-   ##
============================================
- Coverage     77.37%   77.35%   -0.02%     
+ Complexity    58593    58587       -6     
============================================
  Files          3460     3460              
  Lines        220095   220095              
  Branches      28912    28910       -2     
============================================
- Hits         170295   170264      -31     
- Misses        40382    40412      +30     
- Partials       9418     9419       +1

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