Route private named method calls through unified bytecode

[rogeralsing]

Summary

• admit direct private named method call-target preparation into production unified bytecode
• brand private-method-only class instances on the production constructor path, including after derived super()
• update the expansion contract so PrivateFieldDependency now represents private delete only

Verification

• rtk dotnet test tests/Asynkron.JsEngine.Tests -c Release --filter "FullyQualifiedNameUnifiedBytecodeProductionInvocationTests.PrivateNamedMethodCall_UsesUnifiedBytecodeProductionFastPath|FullyQualifiedNameUnifiedBytecodeProductionInvocationTests.PrivateNamedPropertyUpdate_UsesUnifiedBytecodeProductionFastPath|FullyQualifiedNameUnifiedBytecodeProductionEligibilityTests.Evaluate_PrivateNamedMethodCall_AcceptsCallTargetPreparation|FullyQualifiedNameUnifiedBytecodeProductionEligibilityTests.Evaluate_PrivateNamedPropertyDelete_DeclinesWithExplicitCode|FullyQualifiedNameUnifiedBytecodeProductionConstructCallTests.BaseClassConstructorWithPrivateMethod_UsesProductionFastPathAndBrandsInstance|FullyQualifiedNameUnifiedBytecodeProductionConstructCallTests.DerivedConstructorWithPrivateMethod_UsesProductionFastPathAndBrandsAfterSuper|FullyQualifiedName~ExpressionProgramCoverageMapTests.UnifiedBytecodeExpansionContract_ListsRequiredHeadingsAndCurrentEnums"
• rtk dotnet test tests/Asynkron.JsEngine.Tests -c Release --filter "FullyQualifiedNameUnifiedBytecodeProductionEligibilityTests|FullyQualifiedNameUnifiedBytecodeProductionInvocationTests|FullyQualifiedNameUnifiedBytecodeProductionConstructCallTests|FullyQualifiedNameExpressionProgramCoverageMapTests"
• rtk dotnet build src/Asynkron.JsEngine/Asynkron.JsEngine.csproj -c Release
• rtk rg "EvaluateExpression(|ProfileEvaluateExpression(" src/Asynkron.JsEngine/Ast/TypedAstEvaluator.ExecutionPlanRunner*
• rtk git diff --check

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.