Fix wrong indexing in global regexp.

test/mjsunit/regress/regress-crbug-142087.js

 // Copyright 2012 the V8 project authors. All rights reserved.
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-// Flags: --allow-natives-syntax
+var string = "What are you looking for?";
 
-var pixels = new Uint8ClampedArray(8);
-
-function f() {
-  for (var i = 0; i < 8; i++) {
-    pixels[i] = (i * 1.1);
-  }
-  return pixels[1] + pixels[6];
+var expected_match = [];
+for (var i = 0; i < string.length; i++) {
+  expected_match.push("");
 }
 
-f();
-f();
-assertEquals(6, pixels[5]);
-%OptimizeFunctionOnNextCall(f);
-f();
-assertEquals(6, pixels[5]);
+string.replace(/(_)|(_|)/g, "");
+assertArrayEquals(expected_match, string.match(/(_)|(_|)/g, ""));
+
+'***************************************'.match(/((\\)|(\*)|(\$))/g, ".");