[es6] When comparing two symbols we may need to throw a 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 486 matching lines @@
 }
 TestRegistry()
 
 
 function TestGetOwnPropertySymbolsOnPrimitives() {
   assertEquals(Object.getOwnPropertySymbols(true), []);
   assertEquals(Object.getOwnPropertySymbols(5000), []);
   assertEquals(Object.getOwnPropertySymbols("OK"), []);
 }
 TestGetOwnPropertySymbolsOnPrimitives();
+
+
+function TestComparison() {
+  function f() {
+    var a = Symbol();
+    a < a;
+    a > a;
+    a <= a;
+    a >= a;
+  }
+
+  assertThrows(f, TypeError);
+  %OptimizeFunctionOnNextCall(f);
+  assertThrows(f, TypeError);
+  assertThrows(f, TypeError);
+
+  function g() {
+    var a = Symbol();
+    var b = Symbol();
+    a < b;
+    a > b;
+    a <= b;
+    a >= b;
+  }
+  assertThrows(g, TypeError);
+  %OptimizeFunctionOnNextCall(g);
+  assertThrows(g, TypeError);
+  assertThrows(g, TypeError);
+}
+TestComparison();