Fix calling convention of load_in_memory_assembly_fn. (dotnet/core-se…

…tup#8812)

Commit migrated from dotnet/core-setup@64d8ea2

src/installer/corehost/cli/ijwhost/ijwhost.h

@@ -14,7 +14,7 @@ bool patch_vtable_entries(PEDecoder& decoder);
 void release_bootstrap_thunks(PEDecoder& decoder);
 bool are_thunks_installed_for_module(HMODULE instance);
 
-using load_in_memory_assembly_fn = void(*)(pal::dll_t handle, const pal::char_t* path);
+using load_in_memory_assembly_fn = void(STDMETHODCALLTYPE*)(pal::dll_t handle, const pal::char_t* path);
 
 pal::hresult_t get_load_in_memory_assembly_delegate(pal::dll_t handle, load_in_memory_assembly_fn* delegate);