Ignore singleton classes for coverage purposes.

Author: ioquatix

lib/decode/language/ruby/class.rb

@@ -78,6 +78,11 @@ def short_form
 				# The long form is the same as the short form.
 				alias long_form short_form
 
+				# Coverage is not relevant for singleton classes.
+				def coverage_relevant?
+					false
+				end
+				
 				private
 
 				def absolute_path

releases.md

@@ -1,5 +1,9 @@
 # Releases
 
+## Unreleased
+
+  - Singleton classes are not relevant for coverage, so they are now ignored by the coverage reporter.
+
 ## v0.24.4
 
   - Add support for `@constant [Type] Description.` tags.