ToNumber(Symbol) should throw TypeError

test/mjsunit/es6/symbols.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 131 matching lines @@
     if (symbols[i]) {} else assertUnreachable();
   }
 }
 TestToBoolean()
 
 
 function TestToNumber() {
   for (var i in symbols) {
     assertThrows(function() { Number(Object(symbols[i])) }, TypeError)
     assertThrows(function() { +Object(symbols[i]) }, TypeError)
-    assertSame(NaN, Number(symbols[i]).valueOf())
-    assertSame(NaN, symbols[i] + 0)
+    assertThrows(function() { Number(symbols[i]) }, TypeError)
+    assertThrows(function() { symbols[i] + 0 }, TypeError)
   }
 }
 TestToNumber()
 
 
 function TestEquality() {
   // Every symbol should equal itself, and non-strictly equal its wrapper.
   for (var i in symbols) {
     assertSame(symbols[i], symbols[i])
     assertEquals(symbols[i], symbols[i])
@@ skipping 329 matching lines @@
   Realm.shared = symbol1
   assertSame("x1", Realm.eval(realm, "Symbol.keyFor(Realm.shared)"))
 
   var symbol3 = Realm.eval(realm, "Symbol.for('x3')")
   assertFalse(symbol1 === symbol3)
   assertFalse(symbol2 === symbol3)
   assertSame(symbol3, Symbol.for("x3"))
   assertSame("x3", Symbol.keyFor(symbol3))
 }
 TestRegistry()