Update rubocop-performance to 1.5.0 (#31509).

git-svn-id: http://svn.redmine.org/redmine/trunk@18579 e93f8b46-1217-0410-a6f0-8f06a7374b81

.rubocop_todo.yml

@@ -690,6 +690,18 @@ Naming/VariableNumber:
     - 'test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb'
     - 'test/unit/project_test.rb'
 
+# Cop supports --auto-correct.
+Performance/Count:
+  Exclude:
+    - 'test/functional/workflows_controller_test.rb'
+    - 'test/integration/api_test/issues_test.rb'
+    - 'test/unit/issue_test.rb'
+
+# Cop supports --auto-correct.
+Performance/Detect:
+  Exclude:
+    - 'test/unit/project_copy_test.rb'
+
 Performance/FixedSize:
   Exclude:
     - 'test/integration/api_test/issues_test.rb'

Gemfile

@@ -85,7 +85,7 @@ group :test do
   gem "selenium-webdriver"
   # RuboCop
   gem 'rubocop', '~> 0.75.0'
-  gem 'rubocop-performance', '~> 1.4.1'
+  gem 'rubocop-performance', '~> 1.5.0'
   gem 'rubocop-rails', '~> 2.3.0'
 end