Convert manual js indent tests to unit tests

Convert manual js indent tests to unit tests

* test/lisp/progmodes/js-tests.el (ert-x): Require.
(js-deftest-indent): New macro.  Use it to define tests for indenting
the below files.

* test/manual/indent/js-chain.js:
* test/manual/indent/js-indent-align-list-continuation-nil.js:
* test/manual/indent/js-indent-init-dynamic.js:
* test/manual/indent/js-indent-init-t.js:
* test/manual/indent/js.js:
* test/manual/indent/jsx-align-gt-with-lt.jsx:
* test/manual/indent/jsx-comment-string.jsx:
* test/manual/indent/jsx-indent-level.jsx:
* test/manual/indent/jsx-quote.jsx:
* test/manual/indent/jsx-self-closing.jsx:
* test/manual/indent/jsx-unclosed-1.jsx:
* test/manual/indent/jsx-unclosed-2.jsx:
* test/manual/indent/jsx.jsx: Move from here...
* test/lisp/progmodes/js-resources/js-chain.js:
* test/lisp/progmodes/js-resources/js-indent-align-list-continuation-nil.js:
* test/lisp/progmodes/js-resources/js-indent-init-dynamic.js:
* test/lisp/progmodes/js-resources/js-indent-init-t.js:
* test/lisp/progmodes/js-resources/js.js:
* test/lisp/progmodes/js-resources/jsx-align-gt-with-lt.jsx:
* test/lisp/progmodes/js-resources/jsx-comment-string.jsx:
* test/lisp/progmodes/js-resources/jsx-indent-level.jsx:
* test/lisp/progmodes/js-resources/jsx-quote.jsx:
* test/lisp/progmodes/js-resources/jsx-self-closing.jsx:
* test/lisp/progmodes/js-resources/jsx-unclosed-1.jsx:
* test/lisp/progmodes/js-resources/jsx-unclosed-2.jsx:
* test/lisp/progmodes/js-resources/jsx.jsx: ...to here.