Fix case when map includes a symbol key in #emit_coder

Mimic what is done in #visit_Hash. Fixes #107.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/psych/test_coder.rb b/test/psych/test_coder.rb
index 7539c7d..58769ad 100644
--- a/test/psych/test_coder.rb
+++ b/test/psych/test_coder.rb
@@ -85,7 +85,7 @@ module Psych
       end
 
       def encode_with coder
-        coder.represent_map self.class.name, { 'a' => 'b' }
+        coder.represent_map self.class.name, { "string" => 'a', :symbol => 'b' }
       end
     end
 
@@ -131,7 +131,7 @@ module Psych
 
     def test_represent_map
       thing = Psych.load(Psych.dump(RepresentWithMap.new))
-      assert_equal({ 'a' => 'b' }, thing.map)
+      assert_equal({ "string" => 'a', :symbol => 'b' }, thing.map)
     end
 
     def test_represent_sequence