v3.17.4

Features

• simplify chained boolean & string expressions (a391897, ed7051b)

Bug Fixes

• async generator function (5411360)
• compound assignment operator (19c471c)
• generator function (7edd10e)
• immediately invoked function expression (8319bad)
• logical operator (5a5200d)
• rest parameter (bccb1c3)
• unary arithmetic operator (19c471c)