- Remove kFreeBit, as it is not needed any longer

runtime/vm/snapshot.cc

Index: runtime/vm/snapshot.cc
===================================================================
--- runtime/vm/snapshot.cc	(revision 22179)
+++ runtime/vm/snapshot.cc	(working copy)
@@ -126,7 +126,7 @@
   // is set then the rest of tags is a pointer to the next FreeListElement which
   // is kObjectAlignment aligned and has at least 2 lower bits set to zero.
   ASSERT(kObjectId ==
-         ((1 << RawObject::kFreeBit) | (1 << RawObject::kMarkBit)));
+         ((1 << RawObject::kWatchedBit) | (1 << RawObject::kMarkBit)));
   ASSERT((kObjectAlignmentMask & kObjectId) == kObjectId);
   const Snapshot* snapshot = reinterpret_cast<const Snapshot*>(raw_memory);
   return snapshot;