Fix #3475492 - iterating through std::vector wrappers of enumerations.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12916 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/ruby/li_std_vector_enum_runme.rb

@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+
+require 'swig_assert'
+require 'li_std_vector_enum'
+include Li_std_vector_enum
+
+ev = EnumVector.new()
+
+swig_assert(ev.nums[0] == 10)
+swig_assert(ev.nums[1] == 20)
+swig_assert(ev.nums[2] == 30)
+
+it = ev.nums.begin
+v = it.value()
+swig_assert(v == 10)
+it.next()
+v = it.value()
+swig_assert(v == 20)
+
+expected = 10 
+ev.nums.each do|val|
+  swig_assert(val == expected)
+  expected += 10
+end
+