parse.y: remove trace

* parse.y (reg_named_capture_assign_iter): do not insert trace
  instructions before local variable assinments.  putobject is
  expected at first.  [ruby-core:79940] [Bug #13287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

parse.y

@@ -10455,7 +10455,7 @@ reg_named_capture_assign_iter(const OnigUChar *name, const OnigUChar *name_end,
         return ST_CONTINUE;
     }
     var = intern_cstr(s, len, enc);
-    node = newline_node(node_assign(assignable(var, 0), NEW_LIT(ID2SYM(var))));
+    node = node_assign(assignable(var, 0), NEW_LIT(ID2SYM(var)));
     succ = arg->succ_block;
     if (!succ) succ = NEW_BEGIN(0);
     succ = block_append(succ, node);

test/ruby/test_regexp.rb

@@ -205,6 +205,15 @@ class TestRegexp < Test::Unit::TestCase
     assert_not_include(local_variables, :nil, "[ruby-dev:32675]")
   end
 
+  def test_assign_named_capture_trace
+    bug = '[ruby-core:79940] [Bug #13287]'
+    assert_normal_exit("#{<<-"begin;"}\n#{<<-"end;"}", bug)
+    begin;
+      / (?<foo>.*)/ =~ "bar" &&
+        true
+    end;
+  end
+
   def test_match_regexp
     r = /./
     m = r.match("a")