[issue34880] About the "assert" bytecode

[thautwarm]

thautwarm <yaoxiansamma at gmail.com> added the comment:

Hi, Serhiy, there could be an another way to fix all this sort of problems IMO.

We can figure out all the cases that implicitly require shadow builtins, and then change symtable visitor to add corresponding free variables with name mangling, for instance:

1. implicitly add free variable ".AssertionError"

```
def f():
   assert 1
```

where ".AssertionError" is a name-mangled free variable and is assigned once the module is executed.

The same to `StopAsyncIteration`, `TypeError`,  `__build_class__` and so on.

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