Changed size of pointers stored as numbers to intptr_t in spaces.h.

src/spaces.h

Index: src/spaces.h
diff --git a/src/spaces.h b/src/spaces.h
index 843981bf125b8a7beb245552a6eea1ee84691f74..cdb7d2933b0166e4a56653a3ceaa526a1321d168 100644
--- a/src/spaces.h
+++ b/src/spaces.h
@@ -1183,9 +1183,9 @@ class NewSpace : public Space {
 
   // Start address and bit mask for containment testing.
   Address start_;
-  uint32_t address_mask_;
-  uint32_t object_mask_;
-  uint32_t object_expected_;
+  uintptr_t address_mask_;
+  uintptr_t object_mask_;
+  uintptr_t object_expected_;
 
   // Allocation pointer and limit for normal allocation and allocation during
   // mark-compact collection.