dillon1000/react

Ensure arguments are coerced to strings in warnings (#13385)

* Manually join extra attributes in warning

This prevents a bug where Chrome reports `Array(n)` where `n` is the
size of the array.

* Prettier

* Stringify all %s replaced symbols in warning

* Eliminate extra string coercion

* Pass args through with spread, convert all arguments to strings

* Rename strings to stringArgs