MODELIX-969 conceptAlias does not seem to work

[mhuster23]

Generated concepts did not implement getConceptProperty(name: String).

The generated code now roughly looks like this:

public object _C_UntypedImpl_MyConcept {
    override fun getConceptProperty(name: String): String? = when (name) {
        "alias" -> C_MyConcept.alias
        else -> null
    }
}

public interface C_MyConcept {
    companion object : C_MyConcept {
        override val alias: String = "my concept alias"
    }
}

To be verified by reviewers

• Relevant public API members have been documented
• Documentation related to this PR is complete
  • Boundary conditions are documented
  • Exceptions are documented
  • Nullability is documented if used
• Touched existing code has been extended with documentation if missing
• Code is readable
• New features and fixed bugs are covered by tests

[github-actions]

Test Results

154 files  ±0  154 suites  ±0   10m 58s ⏱️ -14s
897 tests ±0  888 ✅ ±0  9 💤 ±0  0 ❌ ±0 
907 runs  ±0  898 ✅ ±0  9 💤 ±0  0 ❌ ±0 

Results for commit b3f1c86. ± Comparison against base commit c477a32.

♻️ This comment has been updated with latest results.

[github-actions]

JVM coverage report

Overall Project	53.03% -0.02%	❌
Files changed	84.93%	🍏

File	Coverage
ConceptWrapperInterfaceGenerator.kt	80.59% -3.85%	❌
ConceptObjectGenerator.kt	79.19% -0.1%	🍏

[slisson]

🎉 This PR is included in version 8.14.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀