Fix build error

lib/ruby/module.rb

@@ -111,7 +111,8 @@ def #{name}(*args, &block)
           optionals = []
 
           triples   = method.parameters.map do |k, n|
-            n ||= new_names.succ!                 # Get a fresh name if needed
+            n ||= (new_names.succ!).dup               # Get a fresh name if needed
+
             case k
             when :req     then [n, n, n]              # def foo(x)
             when :keyreq  then [n, n, "#{n}:#{n}"]    # def foo(x:)
@@ -177,12 +178,12 @@ def emit_call(receiver, name, arg_names, arguments, optionals, state)
       end
 
       def emit_args(arg_names, arguments, optionals, state)
-        arg_names.inject([]) do |args, name|
+        arg_names.inject([]) do |xs, name|
            if k = optionals.index(name)
-             args << arguments[name] if state[k].zero?
+             xs << arguments[name] if state[k].zero?
            else
-             args << arguments[name]
-           end; args
+             xs << arguments[name]
+           end; xs
         end.join(", ")
       end
     end

lib/stupidedi/reader/pointer.rb

@@ -353,7 +353,8 @@ class StringPtr < Pointer
       # @group Conversion Methods
       #########################################################################
 
-      def_delegators :reify, :to_sym, :intern, :to_i, :to_d
+      def_delegators :reify, :to_sym, :intern, :to_i, type: String
+      def_delegators :reify, :to_d
 
       # This is called implicitly when we are used in String interpolation,
       # eg `"abc #{pointer} xyz"` or `"abc %s xyz" % pointer`.