Resolve "Extract EE specific files/lines for spec/javascripts/vue_mr_widget/mock_data.js"

Closes #6553

See merge request gitlab-org/gitlab-ee!11847

- Regular mock_data is the same in CE and EE now
- new EE-specific mock_data extends the CE one
- Updated dependent specs in EE

Add full backtrace for RSpec output

See merge request gitlab-org/gitlab-ce!27686

Upgrade Gitaly to v1.36.0

See merge request gitlab-org/gitlab-ce!27831

Make `CI_COMMIT_REF_NAME` and `SLUG` variable idempotent

Closes #60822

See merge request gitlab-org/gitlab-ce!27663

Move test method to the bottom

See merge request gitlab-org/gitlab-ce!27816

Internationalisation of cycle_analytics directory

See merge request gitlab-org/gitlab-ce!27674

This is one of many MRs opened in order to improve the overall
internationalisation of the GitLab codebase.

i18n documentation
https://docs.gitlab.com/ee/development/i18n/externalization.html

Merge branch '10949-fix-the-following-style-lint-errors-and-warnings-for-ee-app-assets-stylesheets-pages-milestone-scss' into 'master'

Resolve "Fix the following style-lint errors and warnings for `ee/app/assets/stylesheets/pages/milestone.scss`"

Closes #10949

See merge request gitlab-org/gitlab-ee!11665

Port of 55948-help-text-formatting-wiki to EE

See merge request gitlab-org/gitlab-ee!11494

Format extra help page text like wiki

Closes #55948

See merge request gitlab-org/gitlab-ce!26782

CE Backport: Prefer usage of helper `expanded_by_default?`

See merge request gitlab-org/gitlab-ce!27729

Stop using `Rails.env.test?` in views.

Prefer usage of helper `expanded_by_default?`

See merge request gitlab-org/gitlab-ee!11671

Stop using `Rails.env.test?` in views.

CE: Fixes EE differences for app/views/projects/new.html.haml

See merge request gitlab-org/gitlab-ce!27617

Fixes EE differences for app/views/projects/new.html.haml

Closes #11031

See merge request gitlab-org/gitlab-ee!11482

Use keyword args for databuilder push

See merge request gitlab-org/gitlab-ce!24088

Internationalisation of groups directory

See merge request gitlab-org/gitlab-ce!27679

This is one of many MRs opened in order to improve the overall
internationalisation of the GitLab codebase.

i18n documentation
https://docs.gitlab.com/ee/development/i18n/externalization.html

Attempt to debug https://gitlab.com/gitlab-org/gitlab-ce/issues/60953

Fix slow performance with compiling HAML templates

Closes gitlab-ee#11198

See merge request gitlab-org/gitlab-ce!27782

Fix license app with relative url

Closes #11345

See merge request gitlab-org/gitlab-ee!11717

Disallow read user scope to read project events

See merge request gitlab/gitlabhq!3067

In Rails 5, including `ActionView::Context` can have a significant and
hidden performance penalty because this module also includes
`ActionView::CompiledTemplates`. This means that any module that
includes ActionView::Context becomes a descendant of
`CompiledTemplates`.

When a partial is rendered for the first time, it runs
`ActionView::CompiledTemplates#module_eval`, which will evaluate a
string that defines a new method for that partial. For example, the
source of partial might be this string:

```
def _app_views_project_show_html_haml___12345(local_assigns, output)
  "hello world"
end
```

When this string is evaluated, the Ruby interpreter will define the
method and clear the global method cache for all descendants of
`ActionView::CompiledTemplates`. Previous to this change, we
inadvertently made a number of modules fall into this category:

* GroupChildEntity
* NoteUserEntity
* Notify
* MergeRequestUserEntity
* AnalyticsCommitEntity
* CommitEntity
* UserEntity
* Kaminari::Helpers::Paginator
* CurrentUserEntity
* ActionView::Base
* ActionDispatch::DebugExceptions::DebugView
* MarkupHelper
* MergeRequestPresenter

After this change:

* Kaminari::Helpers::Paginator
* ActionView::Base
* ActionDispatch::DebugExceptions::DebugView

Each time a partial is rendered for the first time, all methods for
those modules will have to be redefined. This can exact a significant
performance penalty.

How bad is this penalty? Using the following benchmark script, we can
use DTrace to sample the Ruby interpreter:

```
Benchmark.bm do |x|
  x.report do
    1000.times do
      ActionView::CompiledTemplates.module_eval("def testme\nend")
    end
  end
end
```

This revealed a 11x jump in the time spent in `core#define_method`
alone.

Rails 6 fixes this behavior by moving the `include CompiledTemplates`
into ActionView::Base so that including `ActionView::Context` doesn't
quietly affect other modules in this way.

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/11198

With Pipelines for Merge Requests feature, users cannout keep using
$CI_COMMIT_REF_NAME and _SLUG predefined variables for dynamic
environments. We fix this problem by explicitly looking at the source
ref.