Merge branch 'gl-dropdown-issuable-form' into 'master'

GL dropdowns in issuable form

## What does this MR do?

Changed all the issuable dropdown menus over to user GL dropdowns. This brings the dropdowns to be inline with the issuable filter dropdowns and allows for labels to be created whilst creating/editing an issuable.

## What are the relevant issue numbers?

Closes #12574 

## Screenshots (if relevant)


See merge request !4970

3 files changed, 8 insertions, 8 deletions

diff --git a/features/project/issues/issues.feature b/features/project/issues/issues.feature
index 358e622b736..80670063ea0 100644
--- a/features/project/issues/issues.feature
+++ b/features/project/issues/issues.feature
@@ -37,6 +37,7 @@ Feature: Project Issues
     And I submit new issue "500 error on profile"
     Then I should see issue "500 error on profile"
 
+  @javascript
   Scenario: I submit new unassigned issue with labels
     Given project "Shop" has labels: "bug", "feature", "enhancement"
     And I click link "New Issue"
diff --git a/features/steps/project/forked_merge_requests.rb b/features/steps/project/forked_merge_requests.rb
index 6b56a77b832..8f71dfdd899 100644
--- a/features/steps/project/forked_merge_requests.rb
+++ b/features/steps/project/forked_merge_requests.rb
@@ -135,19 +135,17 @@ class Spinach::Features::ProjectForkedMergeRequests < Spinach::FeatureSteps
   end
 
   step 'I click "Assign to" dropdown"' do
-    first('.ajax-users-select').click
+    click_button 'Assignee'
   end
 
   step 'I should see the target project ID in the input selector' do
-    expect(page).to have_selector("input[data-project-id=\"#{@project.id}\"]")
+    expect(find('.js-assignee-search')["data-project-id"]).to eq "#{@project.id}"
   end
 
   step 'I should see the users from the target project ID' do
-    expect(page).to have_selector('.user-result', visible: true, count: 3)
-    users = page.all('.user-name')
-    expect(users[0].text).to eq 'Unassigned'
-    expect(users[1].text).to eq current_user.name
-    expect(users[2].text).to eq @project.users.first.name
+    expect(page).to have_content 'Unassigned'
+    expect(page).to have_content current_user.name
+    expect(page).to have_content @project.users.first.name
   end
 
   # Verify a link is generated against the correct project
diff --git a/features/steps/project/issues/issues.rb b/features/steps/project/issues/issues.rb
index 35f166c7c08..b785e15f70e 100644
--- a/features/steps/project/issues/issues.rb
+++ b/features/steps/project/issues/issues.rb
@@ -82,7 +82,8 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
 
   step 'I submit new issue "500 error on profile" with label \'bug\'' do
     fill_in "issue_title", with: "500 error on profile"
-    select 'bug', from: "Labels"
+    click_button "Label"
+    click_link "bug"
     click_button "Submit issue"
   end