* Delayed compilation of irregexps until use-time, and specialize on char type.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index c3494c889d1806c4370f0ce9a87792205278fe81..1d2ba896eb57dd82deb4e281b15a2905f520d7c9 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -2924,7 +2924,7 @@ class JSRegExp: public JSObject {
   // ATOM: A simple string to match against using an indexOf operation.
   // IRREGEXP: Compiled with Irregexp.
   // IRREGEXP_NATIVE: Compiled to native code with Irregexp.
-  enum Type { NOT_COMPILED, JSCRE, ATOM, IRREGEXP, IRREGEXP_NATIVE };
+  enum Type { NOT_COMPILED, JSCRE, ATOM, IRREGEXP };
   enum Flag { NONE = 0, GLOBAL = 1, IGNORE_CASE = 2, MULTILINE = 4 };
 
   class Flags {