Fix incorrect handling of global RegExp properties for nested replace-regexp-with-function.

test/mjsunit/string-replace.js

 // Copyright 2009 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 12 matching lines @@
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /**
  * @fileoverview Test String.prototype.replace
  */
 
 function replaceTest(result, subject, pattern, replacement) {
-  var name = 
+  var name =
     "\"" + subject + "\".replace(" + pattern + ", " + replacement + ")";
   assertEquals(result, subject.replace(pattern, replacement), name);
 }
 
 
 var short = "xaxbxcx";
 
 replaceTest("axbxcx", short, "x", "");
 replaceTest("axbxcx", short, /x/, "");
 replaceTest("abc", short, /x/g, "");
@@ skipping 63 matching lines @@
 // Bug 317 look-alikes. If "$e" has no meaning, the "$" must be retained.
 replaceTest("xax$excx", short, "b", "$e");
 replaceTest("xax$excx", short, /b/, "$e");
 replaceTest("xax$excx", short, /b/g, "$e");
 
 replaceTest("xaxe$xcx", short, "b", "e$");
 replaceTest("xaxe$xcx", short, /b/, "e$");
 replaceTest("xaxe$xcx", short, /b/g, "e$");
 
 
-replaceTest("[$$$1$$a1abb1bb0$002$3$03][$$$1$$b1bcc1cc0$002$3$03]c", 
-            "abc", /(.)(?=(.))/g, "[$$$$$$1$$$$$11$01$2$21$02$020$002$3$03]"); 
+replaceTest("[$$$1$$a1abb1bb0$002$3$03][$$$1$$b1bcc1cc0$002$3$03]c",
+            "abc", /(.)(?=(.))/g, "[$$$$$$1$$$$$11$01$2$21$02$020$002$3$03]");
 
 // Replace with functions.
 
 
 var ctr = 0;
 replaceTest("0axbxcx", short, "x", function r(m, i, s) {
   assertEquals(3, arguments.length, "replace('x',func) func-args");
   assertEquals("x", m, "replace('x',func(m,..))");
   assertEquals(0, i, "replace('x',func(..,i,..))");
   assertEquals(short, s, "replace('x',func(..,s))");
@@ skipping 53 matching lines @@
             "<" + longstring + ">", /<(.*)>/g, "$1$1");
 
 replaceTest("string 42", "string x", /x/g, function() { return 42; });
 replaceTest("string 42", "string x", /x/, function() { return 42; });
 replaceTest("string 42", "string x", /[xy]/g, function() { return 42; });
 replaceTest("string 42", "string x", /[xy]/, function() { return 42; });
 replaceTest("string true", "string x", /x/g, function() { return true; });
 replaceTest("string null", "string x", /x/g, function() { return null; });
 replaceTest("string undefined", "string x", /x/g, function() { return undefined; });
 
-replaceTest("aundefinedbundefinedcundefined", 
+replaceTest("aundefinedbundefinedcundefined",
             "abc", /(.)|(.)/g, function(m, m1, m2, i, s) { return m1+m2; });
+
+// Test nested calls to replace, including that it sets RegExp.$& correctly.
+
+function replacer(m,i,s) {
+  assertEquals(m,RegExp['$&']);
+  return "[" + RegExp['$&'] + "-"
+             + m.replace(/./g,"$&$&") + "-"
+             + m.replace(/./g,function() { return RegExp['$&']; })
+             + "-" + RegExp['$&'] + "]";
+}
+
+replaceTest("[ab-aabb-ab-b][az-aazz-az-z]",
+            "abaz", /a./g, replacer);
+
+replaceTest("[ab-aabb-ab-b][az-aazz-az-z]",
+            "abaz", /a(.)/g, replacer);