Revert "Merge old data and pointer space."

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 7f76c16d2e48a95ee93416713ab156dbac4f5d86..32d4392a3598da2033f7d9e3efc1bfa6e7539e43 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4664,15 +4664,16 @@ typedef void (*AddHistogramSampleCallback)(void* histogram, int sample);
 // --- Memory Allocation Callback ---
 enum ObjectSpace {
   kObjectSpaceNewSpace = 1 << 0,
-  kObjectSpaceOldSpace = 1 << 1,
-  kObjectSpaceCodeSpace = 1 << 2,
-  kObjectSpaceMapSpace = 1 << 3,
-  kObjectSpaceCellSpace = 1 << 4,
-  kObjectSpacePropertyCellSpace = 1 << 5,
-  kObjectSpaceLoSpace = 1 << 6,
-  kObjectSpaceAll = kObjectSpaceNewSpace | kObjectSpaceOldSpace |
-                    kObjectSpaceCodeSpace | kObjectSpaceMapSpace |
-                    kObjectSpaceLoSpace
+  kObjectSpaceOldPointerSpace = 1 << 1,
+  kObjectSpaceOldDataSpace = 1 << 2,
+  kObjectSpaceCodeSpace = 1 << 3,
+  kObjectSpaceMapSpace = 1 << 4,
+  kObjectSpaceCellSpace = 1 << 5,
+  kObjectSpacePropertyCellSpace = 1 << 6,
+  kObjectSpaceLoSpace = 1 << 7,
+  kObjectSpaceAll = kObjectSpaceNewSpace | kObjectSpaceOldPointerSpace |
+                    kObjectSpaceOldDataSpace | kObjectSpaceCodeSpace |
+                    kObjectSpaceMapSpace | kObjectSpaceLoSpace
 };
 
   enum AllocationAction {