jscript: Fix some errors detected by Valgrind.

dlls/jscript/engine.c

@@ -1499,7 +1499,7 @@ HRESULT new_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, j
 HRESULT call_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
 {
     call_expression_t *expr = (call_expression_t*)_expr;
-    VARIANT func, var;
+    VARIANT var;
     exprval_t exprval;
     DISPPARAMS dp;
     HRESULT hres;
@@ -1520,7 +1520,7 @@ HRESULT call_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags,
                 V_VT(&var) = VT_EMPTY;
             break;
         default:
-            FIXME("unimplemented type %d\n", V_VT(&func));
+            FIXME("unimplemented type %d\n", exprval.type);
             hres = E_NOTIMPL;
         }
 

dlls/jscript/function.c

@@ -191,7 +191,6 @@ static HRESULT invoke_constructor(FunctionInstance *function, LCID lcid, DISPPAR
         VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
 {
     DispatchEx *this_obj;
-    VARIANT var;
     HRESULT hres;
 
     hres = create_object(function->dispex.ctx, &function->dispex, &this_obj);
@@ -203,7 +202,6 @@ static HRESULT invoke_constructor(FunctionInstance *function, LCID lcid, DISPPAR
     if(FAILED(hres))
         return hres;
 
-    VariantClear(&var);
     V_VT(retv) = VT_DISPATCH;
     V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(this_obj);
     return S_OK;