fix hyrule magic decompression memory leak, misc housekeeping

src/app/zelda3/overworld.cc

@@ -275,11 +275,13 @@ absl::Status Overworld::DecompressAllMapTiles() {
     for (int i = 0; i < size1; i++) {
       bytes[i] = decomp[i];
     }
+    free(decomp);
     decomp = gfx::lc_lz2::Uncompress(rom()->data() + p1, &size2, 1);
     bytes2.resize(size2);
     for (int i = 0; i < size2; i++) {
       bytes2[i] = decomp[i];
     }
+    free(decomp);
 
     OrganizeMapTiles(bytes, bytes2, i, sx, sy, ttpos);
 

src/app/zelda3/overworld.h

@@ -535,6 +535,8 @@ class Overworld : public SharedROM, public core::ExperimentFlags {
   auto mutable_entrances() { return &all_entrances_; }
   auto &holes() { return all_holes_; }
   auto mutable_holes() { return &all_holes_; }
+  auto deleted_entrances() const { return deleted_entrances_; }
+  auto mutable_deleted_entrances() { return &deleted_entrances_; }
   auto AreaPalette() const {
     return overworld_maps_[current_map_].current_palette();
   }
@@ -599,6 +601,8 @@ class Overworld : public SharedROM, public core::ExperimentFlags {
   std::vector<OverworldItem> all_items_;
   std::vector<std::vector<Sprite>> all_sprites_;
 
+  std::vector<uint64_t> deleted_entrances_;
+
   std::vector<std::vector<uint8_t>> map_data_p1 =
       std::vector<std::vector<uint8_t>>(kNumOverworldMaps);
   std::vector<std::vector<uint8_t>> map_data_p2 =

src/app/zelda3/overworld_map.cc

@@ -65,6 +65,8 @@ void OverworldMap::LoadAreaInfo() {
     }
   }
 
+  message_id_ = rom_.toint16(overworldMessages + (parent_ * 2));
+
   if (index_ < 0x40) {
     area_graphics_ = rom_[mapGfx + parent_];
     area_palette_ = rom_[overworldMapPalette + parent_];
@@ -117,8 +119,6 @@ void OverworldMap::LoadAreaInfo() {
       parent_ = 129;
     }
 
-    message_id_ = rom_[overworldMessages + parent_];
-
     area_palette_ = rom_[overworldSpecialPALGroup + parent_ - 0x80];
     if ((index_ >= 0x80 && index_ <= 0x8A && index_ != 0x88) ||
         index_ == 0x94) {