get_frame_size

Get full size of function frame
     ea - any address belonging to the function
returns: Size of function frame in bytes.
         This function takes into account size of local
         variables + size of saved registers + size of
         return address + number of purged bytes.
         The purged bytes correspond to the arguments of
         __stdcall functions.
         If the function doesn't have a frame, return size of
         function return address in the stack.
         If the function doesn't exist, return 0

long get_frame_size(long ea);