Before:
  Save g:ale_solidity_forge_executable

After:
  Restore

Execute(The forge fmt callback should return the correct default values):
  AssertEqual
  \ {
  \   'command': ale#Escape('forge')
  \     . ' fmt %t',
  \   'read_temporary_file': 1,
  \ },
  \ ale#fixers#forge#Fix(bufnr(''))