RTTI: Fix crash if names demangled in target binary already

CMakeLists.txt

@@ -27,6 +27,9 @@ if(CMKR_ROOT_PROJECT)
 	configure_file(cmake.toml cmake.toml COPYONLY)
 endif()
 
+
+add_compile_options($<$<CXX_COMPILER_ID:MSVC>:/MP>)
+
 project(regenny)
 
 if(CMKR_ROOT_PROJECT AND NOT CMKR_DISABLE_VCPKG)
@@ -164,6 +167,10 @@ target_compile_features(regenny PRIVATE
 	cxx_std_17
 )
 
+target_compile_options(regenny PRIVATE
+	"/EHa"
+)
+
 target_include_directories(regenny PRIVATE
 	"src/"
 	"thirdparty/scope_gaurd/"

cmake.toml

@@ -1,6 +1,9 @@
 # Reference: https://build-cpp.github.io/cmkr/cmake-toml
 [project]
 name = "regenny"
+cmake-before=""" 
+add_compile_options($<$<CXX_COMPILER_ID:MSVC>:/MP>)
+"""
 
 [vcpkg]
 version = "2022.08.15"
@@ -67,6 +70,7 @@ link-libraries = [
 ]
 compile-definitions = ["UTF_CPP_CPLUSPLUS=201103L"]
 compile-features = ["cxx_std_17"]
+compile-options = ["/EHa"]
 cmake-after="""
 add_custom_command(
     TARGET regenny POST_BUILD

src/arch/Windows.cpp

@@ -265,7 +265,7 @@ std::optional<std::string> WindowsProcess::get_typename(uintptr_t ptr) {
     return get_typename_from_vtable(*vtable);
 }
 
-std::optional<std::string> WindowsProcess::get_typename_from_vtable(uintptr_t ptr) {
+std::optional<std::string> WindowsProcess::get_typename_from_vtable(uintptr_t ptr) try {
     if (ptr == 0) {
         return std::nullopt;
     }
@@ -285,13 +285,18 @@ std::optional<std::string> WindowsProcess::get_typename_from_vtable(uintptr_t pt
         return std::nullopt;
     }
 
+    auto raw_data = (__std_type_info_data*)((uintptr_t)ti + sizeof(void*));
+    raw_data->_UndecoratedName = nullptr; // fixes a crash if memory already allocated because it's not allocated by us
+
     const auto result = std::string_view{ti->name()};
 
     if (result.empty() || result == " ") {
         return std::nullopt;
     }
 
     return std::string{result};
+} catch(...) {
+    return std::nullopt;
 }
 
 std::map<uint32_t, std::string> WindowsHelpers::processes() {