Make the range function work with integers

This is needed for the future parser which actually treats numbers as
numbers and strings as strings. With this patch you can use range(1,5)
instead of having to quote them like range('1','5').

lib/puppet/parser/functions/range.rb

@@ -66,7 +66,7 @@ module Puppet::Parser::Functions
     end
 
     # Check whether we have integer value if so then make it so ...
-    if start.match(/^\d+$/)
+    if start.to_s.match(/^\d+$/)
       start = start.to_i
       stop  = stop.to_i
     else

spec/functions/range_spec.rb

@@ -67,4 +67,11 @@
       expect(scope.function_range(["00", "10"])).to eq expected
     end
   end
+
+  describe 'with a numeric range' do
+    it "returns a range of numbers" do
+      expected = (1..10).to_a
+      expect(scope.function_range([1,10])).to eq expected
+    end
+  end
 end