Always allocate symbols in old space.

test/mjsunit/harmony/symbols.js

Index: test/mjsunit/harmony/symbols.js
diff --git a/test/mjsunit/harmony/symbols.js b/test/mjsunit/harmony/symbols.js
index c2002e6ac7298a24fa46d70a1ba57f06177d3905..16783e27276dcaa0a15a67de46eb0c7a7ffd5c0f 100644
--- a/test/mjsunit/harmony/symbols.js
+++ b/test/mjsunit/harmony/symbols.js
@@ -301,3 +301,12 @@ for (var i in objs) {
   TestKeyDescriptor(obj)
   TestKeyDelete(obj)
 }
+
+
+var key = Symbol("key");

[rossberg, 2013/03/28 13:33:17]

Please wrap this into a Test function with a descriptive name (and perhaps a
comment, because the purpose of the test isn't all that obvious).

+var a = {};
+a[key] = "abc";
+
+for (var i = 0; i < 1000000; i++) {
+  a[key] += "a";
+}