src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/SplitIntoFunctions.java

@@ -173,11 +173,13 @@
                 // quite a horrible hack to do with CodeGenerator.fixScopeSlot not trampling other parameters
                 // and should go away once we no longer have array unit handling in codegen. Note however that
                 // we still use IS_SPLIT as the criteria in CompilationPhase.SERIALIZE_SPLIT_PHASE.
                 FunctionNode.IS_ANONYMOUS | FunctionNode.USES_ANCESTOR_SCOPE | FunctionNode.IS_SPLIT,
                 body,
-                null
+                null,
+                originalFn.getModule(),
+                originalFn.getDebugFlags()
         )
         .setCompileUnit(lc, splitNode.getCompileUnit());
 
         // Call the function:
         //     either "(function () { ... }).call(this)"