Fix one-by-one error of numbered parameter ID

Author: richardboehme

proc.c

@@ -507,7 +507,7 @@ bind_local_variables(VALUE bindval)
 int
 rb_numparam_id_p(ID id)
 {
-    return (tNUMPARAM_1 << ID_SCOPE_SHIFT) <= id && id < ((tNUMPARAM_1 + 10) << ID_SCOPE_SHIFT);
+    return (tNUMPARAM_1 << ID_SCOPE_SHIFT) <= id && id < ((tNUMPARAM_1 + 9) << ID_SCOPE_SHIFT);
 }
 
 /*

test/ruby/test_proc.rb

@@ -1637,6 +1637,10 @@ def test_local_variable_get
     assert_equal(3, b.local_variable_get(:when))
     assert_equal(4, b.local_variable_get(:begin))
     assert_equal(5, b.local_variable_get(:end))
+
+    assert_raise_with_message(NameError, /local variable \Wdefault\W/) {
+      binding.local_variable_get(:default)
+    }
   end
 
   def test_local_variable_set