Get rid of distinction between below- and above-watermark in page allocation....

src/serialize.cc

Index: src/serialize.cc
===================================================================
--- src/serialize.cc	(revision 7216)
+++ src/serialize.cc	(working copy)
@@ -717,9 +717,8 @@
 // This routine writes the new object into the pointer provided and then
 // returns true if the new object was in young space and false otherwise.
 // The reason for this strange interface is that otherwise the object is
-// written very late, which means the ByteArray map is not set up by the
-// time we need to use it to mark the space at the end of a page free (by
-// making it into a byte array).
+// written very late, which means the FreeSpace map is not set up by the
+// time we need to use it to mark the space at the end of a page free.
 void Deserializer::ReadObject(int space_number,
                               Space* space,
                               Object** write_back) {