Before:
  runtime ale_linters/qml/qmlfmt.vim

After:
  call ale#linter#Reset()

Execute(The qmlfmt handler should parse error messages correctly):
  AssertEqual
  \ [
  \   {
  \     'lnum': 22,
  \     'col': 1,
  \     'type': 'E',
  \     'text': 'Expected token ''}''.'
  \   }
  \ ],
  \ ale_linters#qml#qmlfmt#Handle(1, [
  \   'Error:22:1: Expected token ''}''.'
  \ ])
