proc.c: proc without env

* proc.c (rb_sym_to_proc): move from string.c and create a Proc
  with no environments.  [ruby-core:71088] [Bug #11594]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52129 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 1329ea22ab..07b75b0024 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -147,6 +147,14 @@ class TestSymbol < Test::Unit::TestCase
     end;
   end
 
+  def test_to_proc_call_with_symbol_proc
+    first = 1
+    bug11594 = "[ruby-core:71088] [Bug #11594] corrupted the first local variable"
+    # symbol which does not have a Proc
+    ->(&blk) {}.call(&:test_to_proc_call_with_symbol_proc)
+    assert_equal(1, first, bug11594)
+  end
+
   def test_call
     o = Object.new
     def o.foo(x, y); x + y; end