fix unreachable warning line number

* parse.y (block_append_gen): fix unreachable warning line number.
  should warn at the code, not jump.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35068 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Fri Mar 16 17:42:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (block_append_gen): fix unreachable warning line number.
+	  should warn at the code, not jump.
+
 Fri Mar 16 17:33:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* enum.c (enum_take): allocate buffer array before iteration, as well

parse.y

@@ -8155,7 +8155,7 @@ block_append_gen(struct parser_params *parser, NODE *head, NODE *tail)
       case NODE_REDO:
       case NODE_RETRY:
 	if (RTEST(ruby_verbose)) {
-	    parser_warning(nd, "statement not reached");
+	    parser_warning(tail, "statement not reached");
 	}
 	break;
 

test/ruby/test_syntax.rb

@@ -96,6 +96,13 @@ class TestSyntax < Test::Unit::TestCase
     end
   end
 
+  def test_warn_unreachable
+    assert_warn("test:3: warning: statement not reached\n") do
+      code = "loop do\n" "break\n" "foo\n" "end"
+      assert_valid_syntax(code, "test") {$VERBOSE = true}
+    end
+  end
+
   private
 
   def make_tmpsrc(f, src)