It doesn't really make any sense for the `dependencies` hash to include
all optional, recommended and build dependencies when these are already
separately output.

Let's reorder this to more closely match the ordering in a formula file.
This makes `to_hash` (and our JSON output) more useful and easily
readable for people used to formula files.

This shadows the Homebrew variable so let's rename it for now so that
`--force` works again.

Now with a working DBM on Linux.

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 2.21.2 to 2.21.3.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Commits](https://github.com/grosser/parallel_tests/compare/v2.21.2...v2.21.3

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [simplecov](https://github.com/colszowka/simplecov) from 0.15.1 to 0.16.1.
- [Release notes](https://github.com/colszowka/simplecov/releases)
- [Changelog](https://github.com/colszowka/simplecov/blob/master/CHANGELOG.md)
- [Commits](https://github.com/colszowka/simplecov/compare/v0.15.1...v0.16.1

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [rspec-retry](https://github.com/noredink/rspec-retry) from 0.5.6 to 0.5.7.
- [Release notes](https://github.com/noredink/rspec-retry/releases)
- [Changelog](https://github.com/NoRedInk/rspec-retry/blob/master/changelog.md)
- [Commits](https://github.com/noredink/rspec-retry/compare/v0.5.6...v0.5.7

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Can't do `@args[hash_type]` if `hash_type` is `nil`.

Install the latest Ruby from:
https://github.com/Homebrew/homebrew-portable-ruby/pull/55

This updates ncurses and openssl as well as more closely matching the
Apple's ruby build options.

Notably, this includes the DBM support needed for #3720.

Minor edit.

Fix upgrades of formulae with the same name in multiple taps.

As reported in:
https://github.com/Homebrew/brew/pull/3789#issuecomment-384890624

The fixes the issue mentioned in:
https://github.com/Homebrew/brew/pull/4066#issuecomment-381308153
where `brew missing` was not reading from a tab of an outdated formula.

The `installed_prefix.directory?` check is unnecessary as the following
`opt_or_installed_prefix_keg` call is already checking that when it is
necessary. In this case it's not necessary anyway as `opt_prefix` is
preferred and makes more sense on outdated formulae.

Particularly in the cask case we can do a better job of communicating
how the new formula can be installed.

Fixes #4089.

Ensure that a non-zero exit code is set both for missing random dylibs
and random missing dependencies.

Additionally, while we are here, drastically trim down the public
interface for this class to the bare minimum and allow getting the
output from `display_test_output` as a variable.

Fixes issue mentioned by @ilovezfs in:
https://github.com/Homebrew/brew/pull/3940#issuecomment-383794520