--- a/js/src/frontend/SemanticAnalysis.cpp
+++ b/js/src/frontend/SemanticAnalysis.cpp
@@ -50,18 +50,17 @@ SetFunctionKinds(FunctionBox *funbox, bo
 
         ParseNode *pn = fn->pn_body;
         if (!pn)
             continue;
 
         if (funbox->kids)
             SetFunctionKinds(funbox->kids, isHeavyweight, topInFunction, isDirectEval);
 
-        JSFunction *fun = funbox->function();
-        JS_ASSERT(fun->isInterpreted());
+        JS_ASSERT(funbox->function()->isInterpreted());
         if (pn->isKind(PNK_UPVARS)) {
             /*
              * We loop again over all upvars, and for each non-free upvar,
              * ensure that its containing function has been flagged as
              * heavyweight.
              *
              * The emitter must see funIsHeavyweight() accurately before
              * generating any code for a tree of nested functions.