fix Feature: inheritance checks for typed dictionaries

[asukaminato0721]

part of #52

[yangdanny97]

Running test.py should generate some changes, could you please include them in the commit?

[yangdanny97]

also, I don't think this fully fixes #52, we also have to apply these rules in multiple inheritance.

The code pointer for that is

pyrefly/pyrefly/lib/alt/class/class_field.rs

Line 2007 in 41db847

pub fn check_consistent_multiple_inheritance(&self, cls: &Class, errors: &ErrorCollector) {

[yangdanny97]

back to you with a few comments

[meta-codesync]

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