1200   if (!obj->IsJSReceiver()) return Just(false);  in IsConcatSpreadable()
1524   if (!prototype->IsNull() && !prototype->IsJSReceiver()) {  in BUILTIN()
1557   if (object->IsJSReceiver()) {  in BUILTIN()
1571       object->IsJSReceiver()  in BUILTIN()
1583   Maybe<bool> result = object->IsJSReceiver()  in BUILTIN()
1596   Maybe<bool> result = object->IsJSReceiver()  in BUILTIN()
1649   if (object->IsJSReceiver()) {  in BUILTIN()
1662   if (object->IsJSReceiver()) {  in BUILTIN()
1746   if (!target->IsJSReceiver()) {  in BUILTIN()
1777   if (!target->IsJSReceiver()) {  in BUILTIN()
1802   if (!target->IsJSReceiver()) {  in BUILTIN()
1829   if (!target->IsJSReceiver()) {  in BUILTIN()
1855   if (!target->IsJSReceiver()) {  in BUILTIN()
1875   if (!target->IsJSReceiver()) {  in BUILTIN()
1899   if (!target->IsJSReceiver()) {  in BUILTIN()
1919   if (!target->IsJSReceiver()) {  in BUILTIN()
1941   if (!target->IsJSReceiver()) {  in BUILTIN()
1963   if (!target->IsJSReceiver()) {  in BUILTIN()
1990   if (!target->IsJSReceiver()) {  in BUILTIN()
1997   if (!proto->IsJSReceiver() && !proto->IsNull()) {  in BUILTIN()
3397   DCHECK(args.receiver()->IsJSReceiver());  in HandleApiCallHelper()