More work on moving engine into dlmalloc heap

luprex/core/cpp/debugcollector.hpp

@@ -3,9 +3,10 @@
 
 #include "wrap-vector.hpp"
 #include "wrap-string.hpp"
-#include "wrap-memory.hpp"
 #include "wrap-sstream.hpp"
-#include "wrap-ostream.hpp"
+
+#include <ostream>
+#include <memory>
 
 class DebugCollector {
 private:
@@ -28,7 +29,7 @@ public:
     DebugCollector(const eng::string &targets);
     bool do_header();
     bool do_line();
-    void dump(eng::ostream &os);
+    void dump(std::ostream &os);
     friend class DebugBlock;
 };