Fix CNLT regression.

test/mjsunit/regress/regress-cnlt-elements.js

 // Copyright 2012 the V8 project authors. All rights reserved.
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 // Flags: --expose-gc
 
-function KeyedStoreIC(a) { a[(1)] = Math.E; }
-var literal = [1.2];
-literal.length = 0;
-literal.push('0' && 0 );
-KeyedStoreIC(literal);
+var a = JSON.parse('{"b":1,"c":2,"d":3,"e":4}');
+var b = JSON.parse('{"12040200":1, "a":2, "b":2}');
+var c = JSON.parse('{"24050300":1}');
+b = null;
 gc();
+gc();
+c.a1 = 2;
+c.a2 = 2;
+c.a3 = 2;
+c.a4 = 2;
+c.a5 = 2;
+c.a6 = 2;
+c.a7 = 2;
+c.a8 = 2;