Prettier Plugin Explicit Require Bug

Minimal reproduction of prettier bug: File extension globs not loaded when a plugin is required using require.resolve()

Steps to Reproduce:

1. Clone the repository. And navigate to the repo's root folder.

2. Run yarn install

3. Run yarn prettier -w examples/

   • Only the .js file will get formatted
   • Note that prettier doesn't raise warnings about unknown options in the prettierrc.jc
     • The options phpVersion and wrapAttributes are provided by the @prettier/plugin-php and @shufo/prettier-plugin-blade plugins respectively.
     • This implies the plugins are present and explictly loading the plugins has "worked".

4. Reset all files by running cp originals/* examples/

5. Run yarn prettier -w examples/**/*.{js,blade.php,php,gitignore,sh}

   • This way all the files are formatted successfull.
   • This confirms 2 things:
     1. The plugins are loaded and working.
     2. Prettier is not detecting the extension types declared by the plugins.