d_a_bg debug work + matching for retail (#2890)

include/d/actor/d_a_bg.h

@@ -55,6 +55,7 @@ public:
     /* 804588C4 */ inline int draw();
     /* 8045906C */ inline int create();
     inline int execute();
+    inline int isDelete();
 
 private:
     /* 0x568 */ u8 field_0x568[0x570 - 0x568];

include/d/actor/d_a_suspend.h

@@ -58,8 +58,7 @@ public:
     /* 804D5118 */ int create();
 
     static void reset(int roomNo) {
-        room_c* room = (room_c*)mRoom;  // tmp
-        room[roomNo].reset();
+        mRoom[roomNo].reset();
     }
 
     u32 getScale() { return fopAcM_GetParam(this) >> 0x1E; }