idl2jsx: fix handling type modifiers to parse web workers correctly
idl2jsx: fix handling type modifiers to parse web workers correctly

mattn/JSX,dj31416/JSX,dj31416/JSX,jsx/JSX,dj31416/JSX,mattn/JSX,jsx/JSX,dj31416/JSX,jsx/JSX,jsx/JSX,dj31416/JSX,jsx/JSX