* (graphcache) - Fix handling of conditionless inline fragment

Fix #1039

- Add test suite case for conditionless inline fragment
- Fix `isFragmentHeuristicallyMatching`
- Fix `isInterfaceOfType`
- Use `node` in `isInterfaceOfType` for consistency
- Update tests in `schemaPredicates.test.ts`

* Add missing directive tests to suite

* Add changeset

* Add tests for skipped conditionless inline fragments