Preserve Ruby mixin references

lib/decode/language/ruby/parser.rb

@@ -202,20 +202,7 @@ def walk_definitions(node, parent = nil, source = nil, &block)
 							if parent
 								if node.arguments
 									node.arguments.arguments.each do |arg|
-										mod_name = case arg.type
-										when :constant_read_node
-											# Qualify with enclosing namespace if available (e.g. Mixins::Greeting)
-											if parent.parent && parent.parent.respond_to?(:qualified_name)
-												"#{parent.parent.qualified_name}::#{arg.name}"
-											else
-												arg.name.to_s
-											end
-										when :constant_path_node
-											nested_name_for(arg)
-										else
-											# Skip unsupported argument types (e.g., dynamic expressions)
-											nil
-										end
+										mod_name = nested_name_for(arg)
 										if mod_name
 											case name
 											when :include

test/decode/language/ruby/.fixtures/mixins.rb

@@ -12,7 +12,7 @@ def hello
 
 	class Greeter
 		include Greeting
-		extend Greeting
-		prepend Greeting
+		extend Mixins::Greeting
+		prepend ::Mixins::Greeting
 	end
 end

test/decode/language/ruby/includes.rb

@@ -19,8 +19,8 @@
 		my_class = definitions.find{|d| d.is_a?(Decode::Language::Ruby::Class) && d.qualified_name == "Mixins::Greeter"}
 		expect(my_class).not.to be_nil
 
-		expect(my_class.includes).to be == ["Mixins::Greeting"]
+		expect(my_class.includes).to be == ["Greeting"]
 		expect(my_class.extends).to be == ["Mixins::Greeting"]
-		expect(my_class.prepends).to be == ["Mixins::Greeting"]
+		expect(my_class.prepends).to be == ["::Mixins::Greeting"]
 	end
 end