Features improve elimination of unused variables (b1cfa71) reduce entropy of name mangling (689f8f5) Bug Fixes __proto__ accessor (e136155) assignment operator (bbed9b1, 2549377) function declaration (a7698f8) lexical declaration (2cff7c9) logical assignment operator (ae51f76) optional chaining operator (60f3b55, e044293) template literal (7576048)
