jscript: Correctly throw an exception if instanceof expression is not used on function.

dlls/jscript/engine.c

@@ -2001,15 +2001,14 @@ static HRESULT instanceof_eval(script_ctx_t *ctx, VARIANT *inst, VARIANT *objv,
 
     obj = iface_to_jsdisp((IUnknown*)V_DISPATCH(objv));
     if(!obj) {
-        FIXME("throw TypeError\n");
+        FIXME("non-jsdisp objects not supported\n");
         return E_FAIL;
     }
 
     if(is_class(obj, JSCLASS_FUNCTION)) {
         hres = jsdisp_propget_name(obj, prototypeW, &var, ei, NULL/*FIXME*/);
     }else {
-        FIXME("throw TypeError\n");
-        hres = E_FAIL;
+        hres = throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
     }
     jsdisp_release(obj);
     if(FAILED(hres))

dlls/jscript/tests/api.js

@@ -1982,6 +1982,7 @@ testException(function() {(new Number(3)).toString(1);}, "E_INVALID_CALL_ARG");
 testException(function() {not_existing_variable.something();}, "E_UNDEFINED");
 testException(function() {date();}, "E_NOT_FUNC");
 testException(function() {arr();}, "E_NOT_FUNC");
+testException(function() {(new Object) instanceof (new Object);}, "E_NOT_FUNC");
 testException(function() {eval("nonexistingfunc()")}, "E_OBJECT_EXPECTED");
 testException(function() {(new Object()) instanceof 3;}, "E_NOT_FUNC");
 testException(function() {(new Object()) instanceof null;}, "E_NOT_FUNC");