Before:
  runtime ale_linters/javascript/jscs.vim

After:
  call ale#linter#Reset()

Execute(jscs should parse lines correctly):
  AssertEqual
  \ [
  \   {
  \     'lnum': 1,
  \     'col': 7,
  \     'text': 'Variable declarations should use `let` or `const` not `var`',
  \     'code': 'disallowVar',
  \   },
  \   {
  \     'lnum': 3,
  \     'col': 21,
  \     'text': 'Illegal trailing whitespace',
  \     'code': 'disallowTrailingWhitespace',
  \   },
  \   {
  \     'lnum': 5,
  \     'col': 9,
  \     'text': 'Variable `hello` is not used',
  \     'code': 'disallowUnusedVariables',
  \   },
  \   {
  \     'lnum': 2,
  \     'col': 1,
  \     'text': 'Expected indentation of 1 characters',
  \   },
  \ ],
  \ ale_linters#javascript#jscs#Handle(347, [
  \   'foobar.js: line 1, col 7, disallowVar: Variable declarations should use `let` or `const` not `var`',
  \   'foobar.js: line 3, col 21, disallowTrailingWhitespace: Illegal trailing whitespace',
  \   'foobar.js: line 5, col 9, disallowUnusedVariables: Variable `hello` is not used',
  \   'foobar.js: line 2, col 1, Expected indentation of 1 characters',
  \ ])
