Make #can_lint? a bit simpler

lib/language.rb

@@ -1,7 +1,14 @@
 module Language
   extend self
 
-  delegate :language, :parsing?, :run_tests, :extension, :solution_dump, :lint, to: :current_language
+  delegate :language,
+           :parsing?,
+           :run_tests,
+           :extension,
+           :solution_dump,
+           :can_lint?,
+           :lint,
+           to: :current_language
 
   def current_language
     @current_language ||= const_get Rails.application.config.language.to_s.camelize
@@ -22,8 +29,4 @@ def email_sender
   def domain
     Rails.application.config.course_domain
   end
-
-  def can_lint?
-    current_language.respond_to? :lint
-  end
 end

lib/language/clojure.rb

@@ -9,6 +9,10 @@ def extension
     'clj'
   end
 
+  def can_lint?
+    false
+  end
+
   def solution_dump(attributes)
     <<-END
 ;;; #{attributes[:name]}

lib/language/go.rb

@@ -9,6 +9,10 @@ def extension
     'go'
   end
 
+  def can_lint?
+    false
+  end
+
   def solution_dump(attributes)
     <<-END
 // #{attributes[:name]}

lib/language/python.rb

@@ -9,6 +9,10 @@ def extension
     'py'
   end
 
+  def can_lint?
+    false
+  end
+
   def solution_dump(attributes)
     <<-END
 # #{attributes[:name]}

lib/language/ruby.rb

@@ -9,6 +9,10 @@ def extension
     'rb'
   end
 
+  def can_lint?
+    true
+  end
+
   def solution_dump(attributes)
     <<-END
 # #{attributes[:name]}