Remove PropertyCell space

src/heap/heap-inl.h

Index: src/heap/heap-inl.h
diff --git a/src/heap/heap-inl.h b/src/heap/heap-inl.h
index 8a8edea480457e64be0c1350c761c8ca2ff1d1a2..7e869f263a1be6e6f0ead788bf2ee42f4a3bccc0 100644
--- a/src/heap/heap-inl.h
+++ b/src/heap/heap-inl.h
@@ -198,8 +198,6 @@ AllocationResult Heap::AllocateRaw(int size_in_bytes, AllocationSpace space,
     allocation = lo_space_->AllocateRaw(size_in_bytes, NOT_EXECUTABLE);
   } else if (CELL_SPACE == space) {
     allocation = cell_space_->AllocateRaw(size_in_bytes);
-  } else if (PROPERTY_CELL_SPACE == space) {
-    allocation = property_cell_space_->AllocateRaw(size_in_bytes);
   } else {
     DCHECK(MAP_SPACE == space);
     allocation = map_space_->AllocateRaw(size_in_bytes);
@@ -395,7 +393,6 @@ AllocationSpace Heap::TargetSpaceId(InstanceType type) {
   DCHECK(type != CODE_TYPE);
   DCHECK(type != ODDBALL_TYPE);
   DCHECK(type != CELL_TYPE);
-  DCHECK(type != PROPERTY_CELL_TYPE);
 
   if (type <= LAST_NAME_TYPE) {
     if (type == SYMBOL_TYPE) return OLD_POINTER_SPACE;
@@ -443,7 +440,6 @@ bool Heap::AllowedToBeMigrated(HeapObject* obj, AllocationSpace dst) {
       return dst == src && type == CODE_TYPE;
     case MAP_SPACE:
     case CELL_SPACE:
-    case PROPERTY_CELL_SPACE:
     case LO_SPACE:
       return false;
   }