test_proc.rb: test_curry_binding

* test/ruby/test_proc.rb (test_curry_binding): rename
  test_binding2.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50109 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_proc.rb

@@ -432,7 +432,7 @@ class TestProc < Test::Unit::TestCase
     assert_equal(:noreason, exc.reason)
   end
 
-  def test_binding2
+  def test_curry_binding
     assert_raise(ArgumentError) { proc {}.curry.binding }
   end