Release 6.4.3.2685

Changed

• Each affected FunFair.Test.Common base class (EquatableObjectTestBase, ComparableObjectTestBase, EquatableValueTestBase, ComparableValueTestBase, JsonConverterObjectTestBase, JsonConverterValueTestBase, ValidatorTestBase) now owns a single BuildDispatcherCases() method producing its AOT dispatcher case table once via a Case(t => t.Method()) helper (using CallerArgumentExpression to capture the method name at compile time, not reflection), instead of every leaf class hand-copying the full nameof/lambda table; leaf classes' BaseCaseData() collapses to a one-line delegation