* Add support for evaluating `String.raw` expressions * Dedupe evaluation code for template literal quasis * Check scoping in `String.raw` evaluation This addresses https://github.com/babel/babel/pull/5681#discussion_r114203497 * Ensure that `tag` is a MemberExpression in `String.raw` evaluation This addresses https://github.com/babel/babel/pull/5681#discussion_r114203555 * babel-traverse: Move evaluateQuasis() outside _evaluate()