Push bleeding_edge r1758 and r1764 to trunk....

test/mjsunit/string-replace.js

Index: test/mjsunit/string-replace.js
===================================================================
--- test/mjsunit/string-replace.js	(revision 1761)
+++ test/mjsunit/string-replace.js	(working copy)
@@ -104,7 +104,16 @@
 replaceTest("xax[$1]xcx", short, /b/g, "[$1]");
 replaceTest("xax[]xcx", short, /b()/g, "[$1]");
 
+// 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]");