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+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var thrower = { [Symbol.toPrimitive] : function() { throw "I was called!" } };
+var heap_number = 4.2;
+var smi_number = 23;
+
+assertThrows(() => heap_number.hasOwnProperty(thrower));
+assertThrows(() => smi_number.hasOwnProperty(thrower));