Remove byebug since it doesn't work in tests anymore

- Byebug was introduced in [2020](https://github.com/Homebrew/brew/pull/7577) for hooking into tests for debugging.
- It does not work anymore in so far as it does not stop at breakpoints when following the instructions to trigger them in tests.

Library/Homebrew/Gemfile

@@ -48,7 +48,6 @@ group :style, optional: true do
   gem "rubocop-sorbet", require: false
 end
 group :tests, optional: true do
-  gem "byebug", require: false
   gem "parallel_tests", require: false
   gem "rspec", require: false
   gem "rspec-github", require: false

Library/Homebrew/Gemfile.lock

@@ -7,7 +7,6 @@ GEM
     bindata (2.5.0)
     bootsnap (1.18.3)
       msgpack (~> 1.2)
-    byebug (11.1.3)
     coderay (1.1.3)
     commander (4.6.0)
       highline (~> 2.0.0)
@@ -167,7 +166,6 @@ PLATFORMS
 DEPENDENCIES
   addressable
   bootsnap
-  byebug
   json_schemer
   kramdown
   method_source

Library/Homebrew/dev-cmd/tests.rb

@@ -21,8 +21,6 @@ module Homebrew
         switch "--online",
                description: "Include tests that use the GitHub API and tests that use any of the taps for " \
                             "official external commands."
-        switch "--byebug",
-               description: "Enable debugging using byebug."
         switch "--changed",
                description: "Only runs tests on files that were changed from the master branch."
         switch "--fail-fast",
@@ -45,8 +43,6 @@ module Homebrew
         # Given we might be testing various commands, we probably want everything (except sorbet-static)
         Homebrew.install_bundler_gems!(groups: Homebrew.valid_gem_groups - ["sorbet"])
 
-        require "byebug" if args.byebug?
-
         HOMEBREW_LIBRARY_PATH.cd do
           setup_environment!
 

Library/Homebrew/sorbet/rbi/dsl/homebrew/dev_cmd/tests.rbi

@@ -5,9 +5,6 @@
 # Please instead update this file by running `bin/tapioca dsl Homebrew::DevCmd::Tests`.
 
 class Homebrew::CLI::Args
-  sig { returns(T::Boolean) }
-  def byebug?; end
-
   sig { returns(T::Boolean) }
   def changed?; end
 

Library/Homebrew/sorbet/tapioca/config.yml

@@ -6,7 +6,6 @@ gem:
     - json
     - msgpack
     # These aren't needed:
-    - byebug
     - coderay
     - commander
     - diff-lcs

Library/Homebrew/test/spec_helper.rb

@@ -29,7 +29,6 @@ require "rspec/retry"
 require "rspec/sorbet"
 require "rubocop/rspec/support"
 require "find"
-require "byebug"
 require "timeout"
 
 $LOAD_PATH.unshift(File.expand_path("#{ENV.fetch("HOMEBREW_LIBRARY")}/Homebrew/test/support/lib"))

Library/Homebrew/vendor/bundle/bundler/setup.rb

@@ -35,8 +35,6 @@ $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version
 $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/gems/msgpack-1.7.2/lib")
 $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/extensions/arm64-darwin-20/#{Gem.extension_api_version}/bootsnap-1.18.3")
 $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/gems/bootsnap-1.18.3/lib")
-$:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/extensions/arm64-darwin-20/#{Gem.extension_api_version}/byebug-11.1.3")
-$:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/gems/byebug-11.1.3/lib")
 $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/gems/coderay-1.1.3/lib")
 $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/gems/highline-2.0.3/lib")
 $:.unshift File.expand_path("#{__dir__}/../#{RUBY_ENGINE}/#{Gem.ruby_api_version}/gems/commander-4.6.0/lib")

completions/bash/brew

@@ -2208,7 +2208,6 @@ _brew_tests() {
   case "${cur}" in
     -*)
       __brewcomp "
-      --byebug
       --changed
       --coverage
       --debug

completions/fish/brew.fish

@@ -1465,7 +1465,6 @@ __fish_brew_complete_arg 'test' -a '(__fish_brew_suggest_formulae_installed)'
 
 
 __fish_brew_complete_cmd 'tests' 'Run Homebrew\'s unit and integration tests'
-__fish_brew_complete_arg 'tests' -l byebug -d 'Enable debugging using byebug'
 __fish_brew_complete_arg 'tests' -l changed -d 'Only runs tests on files that were changed from the master branch'
 __fish_brew_complete_arg 'tests' -l coverage -d 'Generate code coverage reports'
 __fish_brew_complete_arg 'tests' -l debug -d 'Display any debugging information'

completions/zsh/_brew

@@ -1815,7 +1815,6 @@ _brew_test() {
 # brew tests
 _brew_tests() {
   _arguments \
-    '--byebug[Enable debugging using byebug]' \
     '(--only)--changed[Only runs tests on files that were changed from the master branch]' \
     '--coverage[Generate code coverage reports]' \
     '--debug[Display any debugging information]' \

docs/Manpage.md

@@ -2650,10 +2650,6 @@ Run Homebrew's unit and integration tests.
 : Include tests that use the GitHub API and tests that use any of the taps for
   official external commands.
 
-`--byebug`
-
-: Enable debugging using byebug.
-
 `--changed`
 
 : Only runs tests on files that were changed from the master branch.

manpages/brew.1

@@ -1687,9 +1687,6 @@ Run only OS\-agnostic tests\.
 \fB\-\-online\fP
 Include tests that use the GitHub API and tests that use any of the taps for official external commands\.
 .TP
-\fB\-\-byebug\fP
-Enable debugging using byebug\.
-.TP
 \fB\-\-changed\fP
 Only runs tests on files that were changed from the master branch\.
 .TP