Proposal: Use a contructor template

[DSchroer]

I know in the past you have opted against using templates on the C++ side. However I was browsing the cxx thread regarding constructors and one of the recent posts recommended a workaround to the problem. Rather than instrument each constructor by itself, create a template like so:

template<typename T, typename... Args>
std::unique_ptr<T> construct(Args... args)
{
  return std::unique_ptr(new T(args...));
}

Then we can just re-use it when binding a new constructor.

What are your thoughts on taking this approach to remove some of the boilerplate?

Original thread:
dtolnay/cxx#280 (comment)

[bschwind]

Oh this is nice, I would definitely be in favor of adding this if it reduces boilerplate and doesn't introduce too much complexity.