TXFAFormScriptLimits Record
TXFAFormScriptLimits.Default supplies non-zero limits for every scripting resource
MaxScriptBytes, MaxOperations, MaxElapsedMilliseconds, MaxExpressionDepth, MaxArrayItems, MaxValueBytes，以及 MaxInstanceOperations bound the common XFA layer
JavaScriptMemoryBytes、JavaScriptStackBytes 和 JavaScriptInterruptChecks 直接对应 QuickJS bridge 运行时；栈边界同时也限制递归深度