Add an explicit conversion operator from `rust::Str` to `std::string_view`.#1486

dtolnay merged 1 commit intodtolnay:masterdtolnay/cxx:masterfrom

anforowicz:rust-str-operator-for-converting-to-string-viewanforowicz/cxx:rust-str-operator-for-converting-to-string-viewCopy head branch name to clipboard