Before:
  runtime ale_linters/typescript/typecheck.vim

After:
  call ale#linter#Reset()

Execute(The typecheck handler should parse lines correctly):
  AssertEqual
  \ [
  \   {
  \     'lnum': 16,
  \     'col': 7,
  \     'text': "Type 'A' is not assignable to type 'B'",
  \   },
  \   {
  \     'lnum': 7,
  \     'col': 41,
  \     'text': "Property 'a' does not exist on type 'A'",
  \   },
  \ ],
  \ ale_linters#typescript#typecheck#Handle(347, [
  \   "somets.ts[16, 7]: Type 'A' is not assignable to type 'B'",
  \   "somets.ts[7, 41]: Property 'a' does not exist on type 'A'",
  \ ])