Implement Proc#for_define_method when @ruby_method is nil like in the old impl to ensure the same behavior

tak1n · tak1n · commit eb465ca85ce0 · 2016-02-07T20:21:58.000+01:00
diff --git a/core/proc.rb b/core/proc.rb
@@ -251,10 +251,11 @@ def for_define_method(name, klass)
       be = @block.dup
       be.change_name name
 
-      executable = Rubinius::BlockEnvironment::AsMethod.new(be)
+      duped_proc = self.dup
+      duped_proc.lambda_style!
 
-      code  = executable
-      scope = executable.scope
+      code  = Rubinius::BlockEnvironment::AsMethod.new(be)
+      scope = duped_proc.block.scope
     end
 
     [code, scope]
