message: Enable `DynamicFunc` for closures with environment.
diff: @@ -349,11 +349,6 @@ impl<'a> DynamicFunc<'a> {
  }
  }
  - // Disable "fat" closures for possible future changes.
  - if mem::size_of::<F>() != 0 {
  - unimplemented!("DynamicFunc with captured environment is not yet supported");
  - }
  -
  let mut builder = TrampolineBufferBuilder::new();
  let ctx: Box<PolymorphicContext> = Box::new(PolymorphicContext {
  arg_types: signature.params().to_vec(),
  