error[E03011]: invalid use of reserved name
  ┌─ tests/move_check/expansion/restricted_module_alias_names.move:3:20
  │
3 │     use 0x42::M as Self;
  │                    ^^^^ Invalid module alias name 'Self'. 'Self' is restricted and cannot be used to name a module alias

warning[W09001]: unused alias
  ┌─ tests/move_check/expansion/restricted_module_alias_names.move:5:20
  │
5 │     use 0x42::M as vector;
  │                    ^^^^^^ Unused 'use' of alias 'vector'. Consider removing it