<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def iter_all_children(self):
        '''Return an iterator that yields every node which is a child of this one.

        This includes inline children, and control structure `else` clauses.
        '''
        
        if self.inline_child:
            yield self.inline_child
        for x in self.children:
            yield x