add test that the callback of Array#_forEach gets inlined even if it has local vars defined (amends commit bc79c04)
add test that the callback of Array#_forEach gets inlined even if it has local vars defined (amends commit bc79c04)

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