ReadonlyargsReadonlydataReadonlyfinalOptional ReadonlyforcedReadonlyfunctionReadonlyfunctionOptional Readonlymarkwhich arguments are to be marked as EdgeType#NonStandardEvaluation|non-standard-evaluation?
Optional Readonlynonsymbols that name data rather than code, so they must not resolve to a function of the same name
Optional Readonlypatch
which of the arguments the call evaluates, as FunctionSemantics.call.signature.forced answers it for the signature