remove duplicated line
fix typo lable => label
optimize param name
combine pickup_expression*
remove pickup_exp_function
remove pack_statements_endline
add Future Reserved Words and Excepted Varnames
pickup case and default in switch
PropertyName: NumericLiteral, "var t = {1.1: 1.1, 010: 8, 0x10: 16};"
Unary +/- Operator *not* part of NumericLiteral, they are Left Operators
fix comments