proc.c: fail symbol proc binding

* proc.c (proc_binding): proc from symbol can not make a binding.
  [ruby-core:74100] [Bug #12137]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54128 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 9c51e26200..8bb9902317 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -176,6 +176,15 @@ class TestSymbol < Test::Unit::TestCase
     end;
   end
 
+  def test_to_proc_binding
+    assert_separately([], <<~"end;", timeout: 1) # do
+      bug12137 = '[ruby-core:74100] [Bug #12137]'
+      assert_raise(ArgumentError, bug12137) {
+        :succ.to_proc.binding
+      }
+    end;
+  end
+
   def test_call
     o = Object.new
     def o.foo(x, y); x + y; end