Speed up long-running test cases.

test/mjsunit/limit-locals.js

 // Copyright 2010 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 16 matching lines @@
 
 // Test that there is a limit of 131071 locals.
 
 // Flags: --stack-size=1200
 
 function function_with_n_locals(n) {
   test_prefix = "prefix ";
   test_suffix = " suffix";
   var src = "test_prefix + (function () {"
   for (var i = 1; i <= n; i++) {
-    src += "var x" + i + ";";
+    src += "; var x" + i;
   }
-  src += "return " + n + ";})() + test_suffix";
+  src += "; return " + n + ";})() + test_suffix";
   return eval(src);
 }
 
 assertEquals("prefix 0 suffix", function_with_n_locals(0));
 assertEquals("prefix 16000 suffix", function_with_n_locals(16000));
 assertEquals("prefix 131071 suffix", function_with_n_locals(131071));
 
 assertThrows("function_with_n_locals(131072)");