Make not sucking at regexp the default...

src/ia32/codegen-ia32.cc

Index: src/ia32/codegen-ia32.cc
===================================================================
--- src/ia32/codegen-ia32.cc	(revision 4367)
+++ src/ia32/codegen-ia32.cc	(working copy)
@@ -10599,9 +10599,9 @@
   // Just jump directly to runtime if native RegExp is not selected at compile
   // time or if regexp entry in generated code is turned off runtime switch or
   // at compilation.
-#ifndef V8_NATIVE_REGEXP
+#ifdef V8_INTERPRETED_REGEXP
   __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
-#else  // V8_NATIVE_REGEXP
+#else  // V8_INTERPRETED_REGEXP
   if (!FLAG_regexp_entry_native) {
     __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
     return;
@@ -10920,7 +10920,7 @@
   // Do the runtime call to execute the regexp.
   __ bind(&runtime);
   __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
-#endif  // V8_NATIVE_REGEXP
+#endif  // V8_INTERPRETED_REGEXP
 }