[dynarmic] isolate crashing case, use unordered_map for test addresses

externals/dynarmic/tests/A64/fibonacci.cpp

@@ -8,7 +8,7 @@
 
 #include <array>
 #include <exception>
-#include <map>
+#include <unordered_map>
 
 #include <catch2/catch_test_macros.hpp>
 #include "dynarmic/common/common_types.h"
@@ -23,7 +23,7 @@ namespace {
 class MyEnvironment final : public A64::UserCallbacks {
 public:
     u64 ticks_left = 0;
-    std::map<u64, u8> memory{};
+    std::unordered_map<u64, u8> memory{};
 
     u8 MemoryRead8(u64 vaddr) override {
         return memory[vaddr];

externals/dynarmic/tests/A64/testenv.h

@@ -9,7 +9,7 @@
 #pragma once
 
 #include <array>
-#include <map>
+#include <unordered_map>
 
 #include "dynarmic/common/assert.h"
 #include "dynarmic/common/common_types.h"
@@ -26,7 +26,7 @@ public:
     u64 code_mem_start_address = 0;
     std::vector<u32> code_mem;
 
-    std::map<u64, u8> modified_memory;
+    std::unordered_map<u64, u8> modified_memory;
     std::vector<std::string> interrupts;
 
     bool IsInCodeMem(u64 vaddr) const {