parse.y: fix segv with Ripper#yydebug

* parse.y (parser_token_value_print): in ripper, ID values are
  wrapped in NODE_RIPPER at set_yylval_name(), so print the Symbol
  wrapped together.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67305 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

parse.y

@@ -9350,7 +9350,7 @@ parser_token_value_print(struct parser_params *p, enum yytokentype type, const Y
 #ifndef RIPPER
 	v = rb_id2str(valp->id);
 #else
-	v = valp->val;
+	v = valp->node->nd_rval;
 #endif
 	rb_parser_printf(p, "%"PRIsVALUE, v);
 	break;

test/ripper/test_ripper.rb

@@ -65,6 +65,15 @@ class TestRipper::Ripper < Test::Unit::TestCase
     assert_predicate @ripper, :yydebug
   end
 
+  def test_yydebug_ident
+    out = StringIO.new
+    ripper = Ripper.new 'test_xxxx'
+    ripper.yydebug = true
+    ripper.debug_output = out
+    ripper.parse
+    assert_include out.string[/.*"local variable or method".*/], 'test_xxxx'
+  end
+
   def test_regexp_with_option
     bug11932 = '[ruby-core:72638] [Bug #11932]'
     src = '/[\xC0-\xF0]/u'.dup.force_encoding(Encoding::UTF_8)