[*] change all std::unordered_map and std::unordered_set into ankerl::unordered_dense::map/set variants (#3442)

mainly doing this to reduce memory footprint; we all know how nice ankerl::unordered_dense is

in theory 4x faster - in practice these maps arent that "hot" anyways so not likely to have much perf gained

i just want to reduce mem fragmentation to ease my porting process, plus it helps other platforms as well (ahem weak Mediatek devices) :)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3442
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/core/arm/dynarmic/arm_dynarmic_64.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
@@ -8,7 +8,7 @@
 
 #include <atomic>
 #include <memory>
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 
 #include <dynarmic/interface/A64/a64.h>
 #include "common/common_types.h"

src/core/arm/nce/lru_cache.h

@@ -1,11 +1,11 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 #pragma once
 #include <list>
 #include <optional>
 #include <shared_mutex>
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 #include <utility>
 
 #include "common/logging/log.h"
@@ -144,7 +144,7 @@ private:
     using list_type      = std::list<key_type>;
     using list_iterator  = typename list_type::iterator;
     using map_value_type = std::pair<list_iterator, value_type>;
-    using map_type       = std::unordered_map<key_type, map_value_type>;
+    using map_type       = ankerl::unordered_dense::map<key_type, map_value_type>;
 
     template <typename V>
     void insert_or_update(const key_type& key, V&& value) {

src/core/arm/nce/patcher.h

@@ -4,7 +4,7 @@
 #pragma once
 
 #include <span>
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 #include <vector>
 #include <oaknut/code_block.hpp>
 #include <oaknut/oaknut.hpp>
@@ -46,7 +46,7 @@ enum class PatchMode : u32 {
 
 using ModuleTextAddress = u64;
 using PatchTextAddress = u64;
-using EntryTrampolines = std::unordered_map<ModuleTextAddress, PatchTextAddress>;
+using EntryTrampolines = ankerl::unordered_dense::map<ModuleTextAddress, PatchTextAddress>;
 
 class Patcher {
 public: