win32u: Build the syscall argument array from the generated syscall list.

dlls/ntdll/unix/loader.c

@@ -945,7 +945,6 @@ NTSTATUS ntdll_init_syscalls( SYSTEM_SERVICE_TABLE *table, void **dispatcher )
         NtTerminateProcess( GetCurrentProcess(), STATUS_INVALID_PARAMETER );
     }
     info->dispatcher = __wine_syscall_dispatcher;
-    memcpy( table->ArgumentTable, (USHORT *)(info + 1) + info->limit, table->ServiceLimit );
     KeServiceDescriptorTable[info->id] = *table;
     return STATUS_SUCCESS;
 }

dlls/win32u/syscall.c

@@ -47,7 +47,16 @@ static void * const syscalls[] =
 #undef SYSCALL_ENTRY
 };
 
-static BYTE arguments[ARRAY_SIZE(syscalls)];
+static BYTE arguments[ARRAY_SIZE(syscalls)] =
+{
+#define SYSCALL_ENTRY(id,name,args) args,
+#ifdef _WIN64
+    ALL_SYSCALLS64
+#else
+    ALL_SYSCALLS32
+#endif
+#undef SYSCALL_ENTRY
+};
 
 static SYSTEM_SERVICE_TABLE syscall_table =
 {