2.0.0

• Update AST for operators, unify bin/bool/coalesce nodes
• Fix nested block usage on function bodies
• Avoid initial $ on variables
• Shell nodes are now exposed by encapsed nodes only
• Typescript definition file
• Avoid identifier nodes on namespaces & use statements
• Fix precedence on bin, unary, retif nodes
• Fix ending position on functions/methods/closures
• Fix lexer unput at the end of the file (infinite loops)
• Add encapsed node (type=offset) on dynamic offsets
• Implement annonymous class arguments
• Fix missing first char on encapsed T_STRING_VARNAME