Don't insert .*? at the beginning of anchored expressions.

benchmarks/base.js

 // Copyright 2008 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 55 matching lines @@
 }
 
 
 // Keep track of all declared benchmark suites.
 BenchmarkSuite.suites = [];
 
 
 // Scores are not comparable across versions. Bump the version if
 // you're making changes that will affect that scores, e.g. if you add
 // a new benchmark or change an existing one.
-BenchmarkSuite.version = '2';
+BenchmarkSuite.version = '3';
 
 
 // To make the benchmark results predictable, we replace Math.random
 // with a 100% deterministic alternative.
 Math.random = (function() {
   var seed = 49734321;
   return function() {
     // Robert Jenkins' 32 bit integer hash function.
     seed = ((seed + 0x7ed55d16) + (seed << 12))  & 0xffffffff;
     seed = ((seed ^ 0xc761c23c) ^ (seed >>> 19)) & 0xffffffff;
@@ skipping 137 matching lines @@
         suite.NotifyError(e);
         return null;
       }
       return RunNext;
     }
     suite.NotifyResult();
     return null;
   }
   return RunNext();
 }