Assertion failure when using --log-regexp

src/log.h

Index: src/log.h
diff --git a/src/log.h b/src/log.h
index 032f611070ad34772858a7eb17c8a9a0951b278f..33c1b29d961de4785c4a83ecbc515f878b291ea4 100644
--- a/src/log.h
+++ b/src/log.h
@@ -354,9 +354,6 @@ class Logger {
   // Internal configurable move event.
   void MoveEventInternal(LogEventsAndTags event, Address from, Address to);
 
-  // Emits the source code of a regexp. Used by regexp events.
-  void LogRegExpSource(Handle<JSRegExp> regexp);
-
   // Used for logging stubs found in the snapshot.
   void LogCodeObject(Object* code_object);