(https://github.com/ruby/rdoc/pull/1212)

Currently, the gemspec's files are defined by hand, which is error-prone.

For example: https://github.com/ruby/rdoc/pull/1211

This commit uses `Dir.glob` where possible to reduce the risk of that
happening again.

- Additional files added with this approach:

    ```
    # This should have been added by only captured by this commit
    lib/rdoc/parser/prism_ruby.rb

    # These are folders and can be included/ignored either way
    lib/rdoc/generator/template/darkfish
    lib/rdoc/generator/template/darkfish/css
    lib/rdoc/generator/template/darkfish/fonts
    lib/rdoc/generator/template/darkfish/images
    lib/rdoc/generator/template/darkfish/js
    lib/rdoc/generator/template/json_index
    lib/rdoc/generator/template/json_index/js
    ```

- Files that are ignored after this change:

    ```
    # They make no difference on documentation generation
    # Probably can be removed
    lib/rdoc/generator/template/darkfish/.document
    lib/rdoc/generator/template/json_index/.document
    ```

https://github.com/ruby/rdoc/commit/ac2a151f10

(https://github.com/ruby/rdoc/pull/1211)

https://github.com/ruby/rdoc/commit/10596827f0

* `rake install` command is failed

\### Problems

Several file paths were changed by following PR.

- https://github.com/ruby/rdoc/commit/4211292ffe80dd4737db2450d72df404a9d55051
- https://github.com/ruby/rdoc/commit/d7bca12c13b8b3f1632d698d497e67d4ea8a88bc

Because rdoc.gemspec doesn't take in this changes,
the `rake install` command is permanently failed.

\### Test

\#### before

```console
❯ bundle exec rake install
Running RuboCop...
Inspecting 4 files
....

4 files inspected, no offenses detected

Tip: Based on detected gems, the following RuboCop extension libraries
might be helpful:
  * rubocop-rake (https://rubygems.org/gems/rubocop-rake)

You can opt out of this message by adding the following to your config
(see
https://docs.rubocop.org/rubocop/extensions.html#extension-suggestions
for more options):
  AllCops:
    SuggestExtensions: false
rake aborted!
Running `gem build -V
/Users/mterada/dev/redDataTools/remove_dependency/rdoc/rdoc.gemspec`
failed with the following output:

WARNING:  See https://guides.rubygems.org/specification-reference/ for
help
ERROR:  While executing gem ... (Gem::InvalidSpecificationException)
    ["RI.rdoc", "lib/rdoc/alias.rb", "lib/rdoc/anon_class.rb",
"lib/rdoc/any_method.rb", "lib/rdoc/attr.rb",
"lib/rdoc/class_module.rb", "lib/rdoc/constant.rb",
"lib/rdoc/context.rb", "lib/rdoc/context/section.rb",
"lib/rdoc/extend.rb", "lib/rdoc/ghost_method.rb", "lib/rdoc/include.rb",
"lib/rdoc/meta_method.rb", "lib/rdoc/method_attr.rb",
"lib/rdoc/mixin.rb", "lib/rdoc/normal_class.rb",
"lib/rdoc/normal_module.rb", "lib/rdoc/require.rb",
"lib/rdoc/single_class.rb", "lib/rdoc/top_level.rb"] are not files

/Users/mterada/.rbenv/versions/3.1.0/bin/bundle:25:in `load'
/Users/mterada/.rbenv/versions/3.1.0/bin/bundle:25:in `<main>'
Tasks: TOP => install => build
(See full trace by running task with --trace)
```

\#### after

```console
❯ bundle exec rake install
Running RuboCop...
Inspecting 4 files
....

4 files inspected, no offenses detected

Tip: Based on detected gems, the following RuboCop extension libraries might be helpful:
  * rubocop-rake (https://rubygems.org/gems/rubocop-rake)

You can opt out of this message by adding the following to your config (see https://docs.rubocop.org/rubocop/extensions.html#extension-suggestions for more options):
  AllCops:
    SuggestExtensions: false
rdoc 6.7.0 built to pkg/rdoc-6.7.0.gem.
rdoc (6.7.0) installed.
```

* Add a `bundle exec rake install` step to github workflow

* make intentionally CI failed

* Revert "make intentionally CI failed"

This reverts commit 9fc5dd9423a024594ad26d86a8a6af829e7017f8.

(https://github.com/ruby/rdoc/pull/1144)

* Add a new ruby parser RDoc::Parser::PrismRuby

* Add a new ruby parser testcase independent from parser's internal implementation

* unknown meta method

* Use MethodSignatureVisitor only to scan params, block_params and calls_super

* Add calls_super test

* Drop ruby 2.6. Prism requires ruby >= 2.7

* Remove duplicated documentation comment from prism_ruby.rb

* Add test for wrong argument passed to metaprogramming method

* Rename visit_call_[DSL_METHOD_NAME] to make it distinguishable from visit_[NODE_TYPE]_node

* Method receiver switch of true/false/nil to a case statement

* Extract common part of add_method(by def keyword) and add meta_comment method

* Reuse consecutive comments array when collecting comments

* Simplify DSL call_node handling

* Refactor extracting method visibility arguments

https://github.com/ruby/rdoc/commit/fde99f1be6

https://github.com/ruby/rdoc/commit/b93687fdd0

https://github.com/ruby/rdoc/commit/26136138aa

https://github.com/ruby/rdoc/commit/6b1a011243