[3.13] add simulation support for user-defined iterable objects

[GoldenStain]

PR Category

User Experience

PR Types

New features

Description

如果用户自定义的Iterable对象，其__iter()__方法返回的结果是list，dict，tuple，tensor，range，那么就能够模拟iter
PCard-66972

[GoldenStain]

test case:

class IterableWithList():
    def __init__(self):
        self._list = [1, 2, 3]
    def __iter__(self):
        return self._list.__iter__()

def list_within_class(x: paddle.Tensor):
    my_iterable = IterableWithList()
    for i in my_iterable:
        x += i
    return x