[JIT] Skip builtins while enumerating class methods

[malfet]

This is needed to support enum.Enum derived classes in Python-3.11
that adds _new_member_ to classdict, see:
https://github.com/python/cpython/blob/15c44789bb125b93e96815a336ec73423c47508e/Lib/enum.py#L529

Following snippet illustrates the problem with the previous iteration of
the code on 3.11:

from enum import Enum
import inspect

class Color(Enum):
    RED = 1
    GREEN = 2

def print_routines(cls):
    print(cls.__name__)
    for name in cls.__dict__:
        fn = getattr(cls, name)
        if inspect.isroutine(fn):
            print(name, fn, f"has_globals: {hasattr(fn, '__globals__')}")

print_routines(Color)

[pytorch-bot]

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[albanD]

Interesting!

[suo]

lgtm

[malfet]

@pytorchbot merge

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