154   byte* pos = Begin();  in Walk()  local
156   byte* main_end = pos;  in Walk()
173   while (pos < main_end) {  in Walk()
174     mirror::Object* obj = reinterpret_cast<mirror::Object*>(pos);  in Walk()
182       pos = reinterpret_cast<byte*>(GetNextObject(obj));  in Walk()
186   while (pos < end) {  in Walk()
187     BlockHeader* header = reinterpret_cast<BlockHeader*>(pos);  in Walk()
189     pos += sizeof(BlockHeader);  // Skip the header so that we know where the objects  in Walk()
190     mirror::Object* obj = reinterpret_cast<mirror::Object*>(pos);  in Walk()
191     const mirror::Object* end = reinterpret_cast<const mirror::Object*>(pos + block_size);  in Walk()
199     pos += block_size;  in Walk()