Enabling `ErrorHandler` exception-type checking to catch sub-classes of the type given, and simplifying call stack checks to allow any stack frame intersection.
Enabling `ErrorHandler` exception-type checking to catch sub-classes of the type given, and simplifying call stack checks to allow any stack frame intersection.

UnionOfRAD/lithium,SensCritique/lithium,wbeater/lithium,datachand/lithium,datachand/lithium,jails/lithium,muyehub/lithium,qoqa/lithium,m4rcsch/lithium-core-library,mehlah/lithium,davidpersson/lithium,qoqa/lithium,whowgames/lithium,jails/lithium,wbeater/lithium,graphis/lithium,m4rcsch/lithium-core-library,muyehub/lithium,whowgames/lithium,pixelcog/lithium,SensCritique/lithium,UnionOfRAD/lithium,davidpersson/lithium,mehlah/lithium,UnionOfRAD/framework,graphis/lithium,m4rcsch/li3_framework,pixelcog/lithium