def merge_inner(clsdict):
    """
    Merge the inner class(es) of a class:
    e.g class A { ... } class A$foo{ ... } class A$bar{ ... }
    ==> class A { class foo{...} class bar{...} ... }
    """
    samelist = False
    done = {}
    while not samelist:
        samelist = True
        classlist = list(clsdict.keys())
        for classname in classlist:
            parts_name = classname.rsplit('$', 1)
            if len(parts_name) > 1:
                mainclass, innerclass = parts_name
                innerclass = innerclass[:-1]  # remove ';' of the name
                mainclass += ';'
                if mainclass in clsdict:
                    clsdict[mainclass].add_subclass(innerclass,
                                                    clsdict[classname])
                    clsdict[classname].name = innerclass
                    done[classname] = clsdict[classname]
                    del clsdict[classname]
                    samelist = False
                elif mainclass in done:
                    cls = done[mainclass]
                    cls.add_subclass(innerclass, clsdict[classname])
                    clsdict[classname].name = innerclass
                    done[classname] = done[mainclass]
                    del clsdict[classname]
                    samelist = False
Merge the inner class(es) of a class:
    e.g class A { ... } class A$foo{ ... } class A$bar{ ... }
    ==> class A { class foo{...} class bar{...} ... }