Before:
  runtime! ale_linters/yaml/gitlablint.vim

After:
  Restore
  call ale#linter#Reset()

Execute(Problems should be parsed correctly for gitlablint):
  AssertEqual
  \ [
  \   {
  \     'lnum': 0,
  \     'col': 0,
  \     'type': 'E',
  \     'text': 'root config contains unknown keys: efore_script',
  \   },
  \   {
  \     'lnum': 77,
  \     'col': 3,
  \     'type': 'E',
  \     'text': '(<unknown>): could not find expected : while scanning a simple key',
  \   },
  \   {
  \     'lnum': 0,
  \     'col': 0,
  \     'type': 'E',
  \     'text': 'build:dev:rest job: undefined need: chck:dev',
  \   },
  \ ],
  \ ale_linters#yaml#gitlablint#Handle(bufnr(''), [
  \   'GitLab CI configuration is invalid',
  \   'root config contains unknown keys: efore_script',
  \   '(<unknown>): could not find expected : while scanning a simple key at line 77 column 3',
  \   'build:dev:rest job: undefined need: chck:dev',
  \ ])