Before:
  runtime ale_linters/vhdl/vcom.vim

After:
  call ale#linter#Reset()

Execute(The vcom handler should parse lines correctly):
  AssertEqual
  \ [
  \   {
  \     'lnum': 218,
  \     'type': 'W',
  \     'text': '(vcom-1236) Shared variables must be of a protected type.'
  \   },
  \   {
  \     'lnum': 73,
  \     'type': 'E',
  \     'text': '(vcom-1136) Unknown identifier "aresetn".'
  \   },
  \   {
  \     'lnum': 73,
  \     'type': 'E',
  \     'text': 'Bad resolution function (STD_LOGIC) for type (error).'
  \   },
  \   {
  \     'lnum': 73,
  \     'type': 'E',
  \     'text': 'near ":": (vcom-1576) expecting ";" or ")".'
  \   },
  \ ],
  \ ale_linters#vhdl#vcom#Handle(bufnr(''), [
  \   '** Warning: ../path/to/file.vhd(218): (vcom-1236) Shared variables must be of a protected type.',
  \   '** Error: tb_file.vhd(73): (vcom-1136) Unknown identifier "aresetn".',
  \   '** Error: tb_file.vhd(73): Bad resolution function (STD_LOGIC) for type (error).',
  \   '** Error: tb_file.vhd(73): near ":": (vcom-1576) expecting ";" or ")".',
  \ ])