* Reapply revisions 1383, 1384, 1391, 1398, 1401, 1402,...

src/objects-inl.h

Index: src/objects-inl.h
===================================================================
--- src/objects-inl.h	(revision 1489)
+++ src/objects-inl.h	(working copy)
@@ -2338,6 +2338,13 @@
 }
 
 
+void JSRegExp::SetDataAt(int index, Object* value) {
+  ASSERT(TypeTag() != NOT_COMPILED);
+  ASSERT(index >= kDataIndex);  // Only implementation data can be set this way.
+  FixedArray::cast(data())->set(index, value);
+}
+
+
 bool JSObject::HasFastElements() {
   return !elements()->IsDictionary();
 }