Fix CHKCALL

SMILEBASIC/VM.d

@@ -297,6 +297,17 @@ class VM
     {
         return backTraceStack[0..traceI];
     }
+    bool chkcall(wstring func)
+    {
+        import otya.smilebasic.builtinfunctions;
+        if (func in currentSlot.functions)
+            return true;
+        if (func in BuiltinFunction.builtinFunctions)
+            return true;
+        if (func in commonFunctions)
+            return true;
+        return false;
+    }
 }
 enum CodeType
 {

SMILEBASIC/builtinfunctions.d

@@ -2246,7 +2246,7 @@ class BuiltinFunction
     static int CHKCALL(PetitComputer p, wstring func)
     {
         func = func.toUpper;
-        return (func in p.vm.currentSlot.functions) != null || (func in otya.smilebasic.builtinfunctions.BuiltinFunction.builtinFunctions) != null;
+        return p.vm.chkcall(func);
     }
     static int CHKLABEL(PetitComputer p, wstring label)
     {